{
  "console": "sms",
  "version": "us",
  "ranked_by": "complete-in-box (CIB) sold price",
  "currency": "USD",
  "top": 50,
  "rule": "Only CIB prices rated good or high confidence (enough sales); collector variants included and marked; hardware and cancelled games left out.",
  "page": "https://gamepricefeed.com/most-valuable/sms/us",
  "list": [
    {
      "rank": 1,
      "game_id": "sms:james-buster-douglas-knock-out-boxing",
      "title": "James 'Buster' Douglas Knock Out Boxing",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/james-buster-douglas-knock-out-boxing",
      "cib": {
        "median_usd": 1005.11,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 331.69
      },
      "sealed": null
    },
    {
      "rank": 2,
      "game_id": "sms:golden-axe-warrior",
      "title": "Golden Axe Warrior",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/golden-axe-warrior/ntsc",
      "cib": {
        "median_usd": 347.44,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 150
      },
      "sealed": {
        "median_usd": 3995.95,
        "estimate": "best guess"
      }
    },
    {
      "rank": 3,
      "game_id": "sms:aleste",
      "title": "Aleste",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/aleste/ntsc",
      "cib": {
        "median_usd": 200.47,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 79.99
      },
      "sealed": null
    },
    {
      "rank": 4,
      "game_id": "sms:alf",
      "title": "Alf",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/alf",
      "cib": {
        "median_usd": 199.99,
        "sales": 30,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 59.99
      },
      "sealed": {
        "median_usd": 372.26,
        "estimate": "best guess"
      }
    },
    {
      "rank": 5,
      "game_id": "sms:dick-tracy",
      "title": "Dick Tracy",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/dick-tracy/ntsc",
      "cib": {
        "median_usd": 174.24,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 21.95
      },
      "sealed": {
        "median_usd": 224.97,
        "estimate": "best guess"
      }
    },
    {
      "rank": 6,
      "game_id": "sms:phantasy-star",
      "title": "Phantasy Star",
      "console": "Master System",
      "year": 1987,
      "url": "https://gamepricefeed.com/game/sms/phantasy-star/ntsc",
      "cib": {
        "median_usd": 157.5,
        "sales": 35,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 76.01
      },
      "sealed": {
        "median_usd": 454.52
      }
    },
    {
      "rank": 7,
      "game_id": "sms:the-amazing-spider-man-vs-the-kingpin",
      "title": "The Amazing Spider-Man vs. The Kingpin",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/the-amazing-spider-man-vs-the-kingpin",
      "cib": {
        "median_usd": 149.99,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 44.95
      },
      "sealed": null
    },
    {
      "rank": 8,
      "game_id": "sms:alex-kidd-in-shinobi-world",
      "title": "Alex Kidd in Shinobi World",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/alex-kidd-in-shinobi-world/ntsc",
      "cib": {
        "median_usd": 149.99,
        "sales": 27,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 59.33,
        "estimate": "best guess"
      },
      "sealed": {
        "median_usd": 199.69,
        "estimate": "best guess"
      }
    },
    {
      "rank": 9,
      "game_id": "sms:alex-kidd-in-shinobi-world-blue-label",
      "title": "Alex Kidd in Shinobi World [Blue Label]",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/alex-kidd-in-shinobi-world-blue-label",
      "collector_variant_of": "sms:alex-kidd-in-shinobi-world",
      "cib": {
        "median_usd": 149.5,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 99,
        "estimate": "best guess"
      },
      "sealed": null
    },
    {
      "rank": 10,
      "game_id": "sms:ghouls-n-ghosts--1",
      "title": "Ghouls 'n Ghosts",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/ghouls-n-ghosts",
      "cib": {
        "median_usd": 147.97,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 39.99
      },
      "sealed": {
        "median_usd": 249.99,
        "estimate": "best guess"
      }
    },
    {
      "rank": 11,
      "game_id": "sms:deep-duck-trouble-starring-donald-duck",
      "title": "Deep Duck Trouble Starring Donald Duck",
      "console": "Master System",
      "year": 1994,
      "url": "https://gamepricefeed.com/game/sms/deep-duck-trouble-starring-donald-duck/ntsc",
      "cib": {
        "median_usd": 125,
        "sales": 9,
        "confidence": "good"
      },
      "loose": null,
      "sealed": null
    },
    {
      "rank": 12,
      "game_id": "sms:super-monaco-gp--2",
      "title": "Super Monaco GP",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/super-monaco-gp/ntsc",
      "cib": {
        "median_usd": 110,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 25.45,
        "estimate": "best guess"
      },
      "sealed": {
        "median_usd": 150,
        "estimate": "best guess"
      }
    },
    {
      "rank": 13,
      "game_id": "sms:aerial-assault",
      "title": "Aerial Assault",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/aerial-assault/ntsc",
      "cib": {
        "median_usd": 91,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 29.99
      },
      "sealed": {
        "median_usd": 175
      }
    },
    {
      "rank": 14,
      "game_id": "sms:ys-the-vanished-omens",
      "title": "Ys: The Vanished Omens",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/ys-the-vanished-omens/ntsc",
      "cib": {
        "median_usd": 89.99,
        "sales": 33,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 40
      },
      "sealed": {
        "median_usd": 124.99
      }
    },
    {
      "rank": 15,
      "game_id": "sms:psycho-fox",
      "title": "Psycho Fox",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/psycho-fox/ntsc",
      "cib": {
        "median_usd": 84.97,
        "sales": 36,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 36.1
      },
      "sealed": {
        "median_usd": 281.01
      }
    },
    {
      "rank": 16,
      "game_id": "sms:assault-city",
      "title": "Assault City",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/assault-city/ntsc",
      "cib": {
        "median_usd": 76.95,
        "sales": 8,
        "confidence": "good"
      },
      "loose": null,
      "sealed": null
    },
    {
      "rank": 17,
      "game_id": "sms:rc-grand-prix",
      "title": "R.C. Grand Prix",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/rc-grand-prix/ntsc",
      "cib": {
        "median_usd": 75,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 120,
        "estimate": "best guess"
      }
    },
    {
      "rank": 18,
      "game_id": "sms:castle-of-illusion-starring-mickey-mouse--2",
      "title": "Castle of Illusion Starring Mickey Mouse",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/castle-of-illusion-starring-mickey-mouse/ntsc",
      "cib": {
        "median_usd": 69.99,
        "sales": 25,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 27.49
      },
      "sealed": {
        "median_usd": 300,
        "estimate": "best guess"
      }
    },
    {
      "rank": 19,
      "game_id": "sms:double-dragon-blue-label",
      "title": "Double Dragon [Blue Label]",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/double-dragon-blue-label",
      "collector_variant_of": "sms:double-dragon--10",
      "cib": {
        "median_usd": 69.5,
        "sales": 20,
        "confidence": "high"
      },
      "loose": null,
      "sealed": null
    },
    {
      "rank": 20,
      "game_id": "sms:cyber-police-eswat",
      "title": "Cyber Police ESWAT",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/cyber-police-eswat",
      "cib": {
        "median_usd": 67.5,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 28.22
      },
      "sealed": {
        "median_usd": 149.95
      }
    },
    {
      "rank": 21,
      "game_id": "sms:golvellius-valley-of-doom",
      "title": "Golvellius: Valley of Doom",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/golvellius-valley-of-doom/ntsc",
      "cib": {
        "median_usd": 66.28,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 30
      },
      "sealed": {
        "median_usd": 100
      }
    },
    {
      "rank": 22,
      "game_id": "sms:fantasy-zone-ii",
      "title": "Fantasy Zone II",
      "console": "Master System",
      "year": 1987,
      "url": "https://gamepricefeed.com/game/sms/fantasy-zone-ii/ntsc",
      "cib": {
        "median_usd": 59.97,
        "sales": 30,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 25.39
      },
      "sealed": {
        "median_usd": 59.99,
        "estimate": "best guess"
      }
    },
    {
      "rank": 23,
      "game_id": "sms:galaxy-force",
      "title": "Galaxy Force",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/galaxy-force",
      "cib": {
        "median_usd": 57.96,
        "sales": 34,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 24.99
      },
      "sealed": {
        "median_usd": 89.41,
        "estimate": "best guess"
      }
    },
    {
      "rank": 24,
      "game_id": "sms:wonder-boy-iii-the-dragons-trap",
      "title": "Wonder Boy III: The Dragon's Trap",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/wonder-boy-iii-the-dragons-trap/ntsc",
      "cib": {
        "median_usd": 57.45,
        "sales": 10,
        "confidence": "good"
      },
      "loose": null,
      "sealed": null
    },
    {
      "rank": 25,
      "game_id": "sms:strider--3",
      "title": "Strider",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/strider/ntsc",
      "cib": {
        "median_usd": 55.5,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 15.99
      },
      "sealed": {
        "median_usd": 200
      }
    },
    {
      "rank": 26,
      "game_id": "sms:alex-kidd-in-miracle-world",
      "title": "Alex Kidd in Miracle World",
      "console": "Master System",
      "year": 1986,
      "url": "https://gamepricefeed.com/game/sms/alex-kidd-in-miracle-world/ntsc",
      "cib": {
        "median_usd": 55,
        "sales": 35,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 25.19
      },
      "sealed": {
        "median_usd": 99.99
      }
    },
    {
      "rank": 27,
      "game_id": "sms:fantasy-zone--6",
      "title": "Fantasy Zone",
      "console": "Master System",
      "year": 1986,
      "url": "https://gamepricefeed.com/game/sms/fantasy-zone/ntsc",
      "cib": {
        "median_usd": 45.78,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 75
      }
    },
    {
      "rank": 28,
      "game_id": "sms:r-type--3",
      "title": "R-Type",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/r-type/ntsc",
      "cib": {
        "median_usd": 45.67,
        "sales": 36,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 145.75
      }
    },
    {
      "rank": 29,
      "game_id": "sms:miracle-warriors-seal-of-the-dark-lord",
      "title": "Miracle Warriors: Seal of the Dark Lord",
      "console": "Master System",
      "year": 1987,
      "url": "https://gamepricefeed.com/game/sms/miracle-warriors-seal-of-the-dark-lord",
      "cib": {
        "median_usd": 45,
        "sales": 31,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 15
      },
      "sealed": {
        "median_usd": 104.97
      }
    },
    {
      "rank": 30,
      "game_id": "sms:sonic-the-hedgehog--2",
      "title": "Sonic the Hedgehog",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/sonic-the-hedgehog/ntsc",
      "cib": {
        "median_usd": 45,
        "sales": 26,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 49.99
      },
      "sealed": {
        "median_usd": 476.44,
        "estimate": "best guess"
      }
    },
    {
      "rank": 31,
      "game_id": "sms:wonder-boy--1",
      "title": "Wonder Boy",
      "console": "Master System",
      "year": 1987,
      "url": "https://gamepricefeed.com/game/sms/wonder-boy/ntsc",
      "cib": {
        "median_usd": 44.99,
        "sales": 33,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 77.5,
        "estimate": "best guess"
      }
    },
    {
      "rank": 32,
      "game_id": "sms:dead-angle",
      "title": "Dead Angle",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/dead-angle",
      "cib": {
        "median_usd": 43.99,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 18.67
      },
      "sealed": {
        "median_usd": 61.01,
        "estimate": "best guess"
      }
    },
    {
      "rank": 33,
      "game_id": "sms:teddy-boy",
      "title": "Teddy Boy",
      "console": "Master System",
      "year": 1985,
      "url": "https://gamepricefeed.com/game/sms/teddy-boy/ntsc",
      "cib": {
        "median_usd": 42,
        "sales": 28,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 20.5,
        "estimate": "best guess"
      },
      "sealed": null
    },
    {
      "rank": 34,
      "game_id": "sms:golden-axe--2",
      "title": "Golden Axe",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/golden-axe/ntsc",
      "cib": {
        "median_usd": 41.99,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.97
      },
      "sealed": {
        "median_usd": 79.95,
        "estimate": "best guess"
      }
    },
    {
      "rank": 35,
      "game_id": "sms:wonder-boy-in-monster-land--1",
      "title": "Wonder Boy in Monster Land",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/wonder-boy-in-monster-land/ntsc",
      "cib": {
        "median_usd": 41.65,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 24
      },
      "sealed": {
        "median_usd": 154.54
      }
    },
    {
      "rank": 36,
      "game_id": "sms:slap-shot--1",
      "title": "Slap Shot",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/slap-shot/ntsc",
      "cib": {
        "median_usd": 40.41,
        "sales": 31,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 21.95
      },
      "sealed": {
        "median_usd": 69.98,
        "estimate": "best guess"
      }
    },
    {
      "rank": 37,
      "game_id": "sms:rastan",
      "title": "Rastan",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/rastan/ntsc",
      "cib": {
        "median_usd": 40,
        "sales": 35,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 23.55
      },
      "sealed": {
        "median_usd": 94.5
      }
    },
    {
      "rank": 38,
      "game_id": "sms:transbot",
      "title": "TransBot",
      "console": "Master System",
      "year": 1985,
      "url": "https://gamepricefeed.com/game/sms/transbot",
      "cib": {
        "median_usd": 39.99,
        "sales": 33,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 21.67,
        "estimate": "best guess"
      },
      "sealed": {
        "median_usd": 549.99,
        "estimate": "best guess"
      }
    },
    {
      "rank": 39,
      "game_id": "sms:kenseiden",
      "title": "Kenseiden",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/kenseiden/ntsc",
      "cib": {
        "median_usd": 39.99,
        "sales": 37,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 59.99
      }
    },
    {
      "rank": 40,
      "game_id": "sms:spellcaster",
      "title": "SpellCaster",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/spellcaster",
      "cib": {
        "median_usd": 39.99,
        "sales": 34,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99
      },
      "sealed": {
        "median_usd": 97.47
      }
    },
    {
      "rank": 41,
      "game_id": "sms:paperboy--6",
      "title": "Paperboy",
      "console": "Master System",
      "year": 1990,
      "url": "https://gamepricefeed.com/game/sms/paperboy",
      "cib": {
        "median_usd": 39.99,
        "sales": 41,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 18
      },
      "sealed": {
        "median_usd": 149.97,
        "estimate": "best guess"
      }
    },
    {
      "rank": 42,
      "game_id": "sms:asterix-and-the-secret-mission",
      "title": "Astérix and the Secret Mission",
      "console": "Master System",
      "year": 1993,
      "url": "https://gamepricefeed.com/game/sms/asterix-and-the-secret-mission/ntsc",
      "cib": {
        "median_usd": 36.37,
        "sales": 7,
        "confidence": "good"
      },
      "loose": {
        "median_usd": 32.99,
        "estimate": "best guess"
      },
      "sealed": null
    },
    {
      "rank": 43,
      "game_id": "sms:asterix--2",
      "title": "Astérix",
      "console": "Master System",
      "year": 1991,
      "url": "https://gamepricefeed.com/game/sms/asterix/ntsc",
      "cib": {
        "median_usd": 36.25,
        "sales": 32,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 20,
        "estimate": "best guess"
      },
      "sealed": null
    },
    {
      "rank": 44,
      "game_id": "sms:zillion",
      "title": "Zillion",
      "console": "Master System",
      "year": 1987,
      "url": "https://gamepricefeed.com/game/sms/zillion",
      "cib": {
        "median_usd": 35.55,
        "sales": 36,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 12.74
      },
      "sealed": {
        "median_usd": 74.99
      }
    },
    {
      "rank": 45,
      "game_id": "sms:my-hero",
      "title": "My Hero",
      "console": "Master System",
      "year": 1986,
      "url": "https://gamepricefeed.com/game/sms/my-hero/ntsc",
      "cib": {
        "median_usd": 35,
        "sales": 30,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 18.49
      },
      "sealed": {
        "median_usd": 95,
        "estimate": "best guess"
      }
    },
    {
      "rank": 46,
      "game_id": "sms:space-harrier-3-d",
      "title": "Space Harrier 3-D",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/space-harrier-3-d",
      "cib": {
        "median_usd": 35,
        "sales": 29,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 13.59
      },
      "sealed": {
        "median_usd": 109.99
      }
    },
    {
      "rank": 47,
      "game_id": "sms:california-games-blue-label",
      "title": "California Games [Blue Label]",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/california-games-blue-label",
      "collector_variant_of": "sms:california-games--4",
      "cib": {
        "median_usd": 35,
        "sales": 23,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 9.99,
        "estimate": "best guess"
      },
      "sealed": null
    },
    {
      "rank": 48,
      "game_id": "sms:rampage--3",
      "title": "Rampage",
      "console": "Master System",
      "year": 1988,
      "url": "https://gamepricefeed.com/game/sms/rampage",
      "cib": {
        "median_usd": 34.99,
        "sales": 45,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 17.49
      },
      "sealed": {
        "median_usd": 2400,
        "estimate": "best guess"
      }
    },
    {
      "rank": 49,
      "game_id": "sms:spy-vs-spy--1",
      "title": "Spy vs Spy",
      "console": "Master System",
      "year": 1986,
      "url": "https://gamepricefeed.com/game/sms/spy-vs-spy",
      "cib": {
        "median_usd": 34.97,
        "sales": 30,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 19.99,
        "estimate": "best guess"
      },
      "sealed": {
        "median_usd": 87.5
      }
    },
    {
      "rank": 50,
      "game_id": "sms:cloud-master--1",
      "title": "Cloud Master",
      "console": "Master System",
      "year": 1989,
      "url": "https://gamepricefeed.com/game/sms/cloud-master/ntsc",
      "cib": {
        "median_usd": 34.96,
        "sales": 30,
        "confidence": "high"
      },
      "loose": {
        "median_usd": 17.99
      },
      "sealed": {
        "median_usd": 225
      }
    }
  ]
}