Casper is a series of action-adventure games based on the 1995 film of the same name. Two different games were released in 1996 and 1997 for the Super Nintendo Entertainment System, by different publishers, in different regions. A third game was released for the 3DO (the final release for that system), Sega Saturn, PlayStation, and Game Boy Color, published by Interplay Productions. There was also a Game Boy game developed by Bonsai. A PC game, Casper: The Interactive Adventure, and a Game Boy Advance game, simply titled Casper, were released in 1997 and 2002 respectively serving as sequels.

Mini-games
Fatso’s Creature Feature is a simple puzzle game with players completing puzzles that result in brief animations once finished. “Easy” has the player assembling Casper and his uncles, while “medium” has the player assembling puzzles featuring the Ghostly Trio in different shapes, colors and patterns. As explained upwards, the hard difficulty puzzles consist of stills from the film which when completed, play a scene relating to that image.
Stretch’s Shake Rattle and Roll is a spelling game in which players have to free Casper from the kitchen stove chimney (Stretch had trapped him down it) by spelling words in a Tetris-like fashion. Players have to use the arrow keys to put each letter into the correct boxes and each time a word is completed, Stretch moves Casper up a level until he reaches the top. On higher difficulties, the letters will fall faster and even appear in different orientations, so players must also use the up and down arrows to turn the letters. If no letters match any in the current word, they can be given to Fatso, though he will also eat any letters that are incorrectly matched or are in the wrong orientation even if they are matched.
Stinky’s Peek-A-Boo has the player help the ghost version of Dr. Harvey (who is trapped in the Lazarus) catch Stinky, who has stolen the Cellular Integrator for the Lazarus in an attempt to keep Harvey as a ghost. Stinky will turn himself into random shapes and players have to click on different tiles on a board to find words or objects (based on the current difficulty) that match the current shape he has become or something within the shape itself (i.e. a day of the week). The higher the difficulty, the more words/objects the player has to match to catch Stinky.

Sega Saturn, 3DO, PlayStation, and Game Boy Color game
The version published by Interplay and developed by Funcom plays as a top-view action-adventure game with pre-rendered graphics. The game features an alternate rendition of the film’s plot (with some of its dark elements retained) spread across three acts, consisting of Casper finding tokens of friendship for Kat and Dr. Harvey, then finding the pieces for the Lazarus machine (which the Ghostly Trio had disassembled to prevent Casper from using it) and assembling it, and finally finding the Cellular Integrator with which to restore Harvey (which is stolen by Carrigan, leading to the final challenge), while exploring the mansion, collecting jigsaw pieces to solve puzzles for morph icons, eating food for morph points and dealing with the Ghostly Trio. Unlike other versions, other than the Ghostly Trio and Carrigan, there are no enemies. The game instead focuses mainly on solving puzzles. Like in the Brainy Book, Casper and his uncles were reprised by their respective voice actors, whilst Kat and Dr. Harvey were voiced by Tanya Krievins and Blair Bess (again replacing Ricci and Pullman), with Bess providing narration for each act’s introduction as well as reading out several hint parchments found throughout the game. Carrigan’s voice actor remains uncredited (due to her appearing at the end and her only line being “I’ll take that!”).

In an odd seeming oversight, in the game, no matter what one does, the player seems to wind up with an extra red key.[2][3] Players have scoured the manor with no luck finding an extra red door. After combing through the games information, it seems there truly is no extra red door or room in which to use it. It is possible and likely that the extra red key was an oversight in the fact that it may have supposed to have been a gold key. If the player uses one of the gold key’s in the wrong intended order, it softlocks the player out of the latter half of the game’s secrets. It is also possible, but less likely, that it is merely a red herring.

The Game Boy Color game is a scaled-down version of the Saturn/3DO/PS game with the only puzzles and morph icons being the ones required to reach the ending and the sound and graphics are rendered for handheld.