Oscar is a side-scrolling platformer, players control Oscar, a chipmunk navigating seven Hollywood-themed worlds—such as Science Fiction, Western, Horror, and Cartoons—collecting miniature Oscar statuettes to progress through levels. Each world comprises three scenes, and Oscar dons costumes appropriate to each setting. The game is noted for its colorful graphics, engaging soundtrack, and varied level designs. However, some players have criticized its controls and collision detection. Despite these issues, it remains a charming title from the early '90s platformer era.