Aaahh!!. Real Monsters is an action-adventure platformer video game developed by Realtime Associates and published by Viacom New Media for the Sega Genesis and SNES based on the American car... Read allAaahh!!. Real Monsters is an action-adventure platformer video game developed by Realtime Associates and published by Viacom New Media for the Sega Genesis and SNES based on the American cartoon series of the same name on Nickelodeon.Aaahh!!. Real Monsters is an action-adventure platformer video game developed by Realtime Associates and published by Viacom New Media for the Sega Genesis and SNES based on the American cartoon series of the same name on Nickelodeon.