Gumboy: Crazy Adventures is a sidescrolling platform game. Gumboy is a ball that can be rolled by pressing left or right. The control key makes him roll faster. The aim of most of the levels is to collect valuables. Once all valuables have been collected, a portal to the next level opens. The game features a unique graphical style, which combines cel-shading, twinkling lights, and soft colors, and gives it a magical feeling. (mobygames.com)