Harley's Humongous Adventure is a 2D side-scrolling platform game developed by Visual Concepts and published by Hi-Tech Expressions in 1993 for the Super Nintendo Entertainment System (SNES). Its Japanese title is *Kagakusha Harley no Haran Banjō*.
Players take on the role of Harley, a young scientist who accidentally shrinks himself to the size of a bar of soap during an experiment. To return to his normal size, Harley must collect scattered shrink ray parts throughout his house. Levels take place in the lab, kitchen, toy room, bathroom and more, each packed with challenges and enemies like flies, bees, and ants.
Harley can use various weapons and items such as thumbtacks, rubber bands, marbles, and firecrackers to fight enemies and overcome obstacles. The game also features jetpacks, parachutes, and air supply items to help Harley progress through different environments.
It boasts a unique visual style blending pixel art and digital clay animation models, with all characters rendered in claymation by A-OK Animation.
Overall, Harley's Humongous Adventure delivers a fun gaming experience with its distinctive art style and creative level design.