Rappy

Rappies are enemies in the game Donkey Kong for the Game Boy. They first appear in stage 1-1 in the Big-City. Rappies only walk horizontally on their platform and turn around when they reach an edge or run into another Rappy. They do not attempt to charge at Mario, but they defeat him if he runs into them. Standing on them is possible, and they can be picked up and thrown at other enemies. If Mario approaches them with the hammer, they run in panic in the direction they are currently facing, which might actually bring them closer to Mario.