AAAHH!!! Real Monsters is a 2D horror-themed side-scrolling platformer developed by Realtime Associates and published by Viacom New Media for the Super Nintendo Entertainment System and Sega Genesis in North America and Europe on August 15, 1995.
Based on the Nickelodeon animated series of the same name, the game has players controlling a trio of young monsters (Ickis, Oblina, and Krumm) as they set out to complete their monster academy's "midterm exam" by venturing out into the human world and collecting certain specific objects (while scaring off humans).
During the game, players can switch between each of the three monsters at any time, each with their own unique ability (such as Ickis's long leaps, Oblina's tall jumps, and Krumm using his detached eyeballs to scout off-screen areas). Along with throwing garbage at enemies, players can perform a limited-use "scare" which, if done at the right time, instantly defeats normal enemies on the screen (and takes out a significant amount of hit points on boss characters).