Animaniacs is a Game Boy platformer based on the popular animated television series. The game likely features the show's main characters, Yakko, Wakko, and Dot, navigating various levels based on locations and situations from the cartoon. Gameplay would probably consist of running, jumping, and collecting items, potentially with some puzzle elements.  While several versions exist (European and US), the core gameplay would likely be similar across regions. The developer and publisher vary depending on the region.

Animaniacs (Europe)

America Oudan Ultra Quiz Part 4 (Japan)