Aaaand here’s Super Smash Bros. for Game Boy Color! 

This game’s particular quirk is that it only includes characters with handheld appearances - the stages are also based on handheld games. Above you see the Mario’s Castle stage - a simple level with moving platforms… but watch out for when the emblem flips - the stage turns into Wario’s Castle and enemies might show up!

Other stages in the game include: Big City (Donkey Kong ‘94), Tal Tal Heights (The Legend of Zelda: Link’s Awakening), SR388 (Metroid II: Return of Samus), Yoshi’s Cookie (with Dr. Mario alt music), Ripple Field (Kirby’s Dream Land 2), Safari Zone (Pokémon Red & Blue), and Game & Watch Gallery