Play Casper (E) Online

Casper for the Game Boy Advance came out in 2002, developed by Avalanche Software and published by TDK Mediactive. It was one of those licensed platformers that felt common for the era, a game based on the friendly ghost character that tried to carve out its own space on a handheld full of action and adventure titles.

You control Casper, navigating the haunted halls of Whipstaff Manor room by room. Your main goal is to help a girl named Kat by finding pages from her father's journal, which involves a lot of floating through environments, interacting with objects, and using your ghostly abilities. Key mechanics include turning invisible to sneak past the human ghost hunters patrolling the mansion and using a limited telekinesis to move items and solve environmental puzzles. The pacing is fairly slow and deliberate, focused more on exploration and light puzzle solving than on combat or intense challenges. It feels like a quiet, slightly clunky exploration game where the primary satisfaction comes from figuring out how to manipulate your surroundings without being seen.