Kroxo is an Alien variant of Croco and is several times stronger. Although he appears to be one of the weakest Alien enemies, he is not much of a threat towards the beginning of the Into the Future levels, but in later in the game, he may be strong enough to take out a high-level Eraser in one hit. In appearance, Kroxo is identical to Croco, with the significant difference of being colored cyan. His eyes are now sticking out of his head.
The strategy for this enemy varies greatly with its strength magnification. Any peon clearer like Crazed Gross works greatly when this is not buffed, but its damage becomes apparent when it is buffed, requiring units like Macho Leg to quickly kill it, specifically in later game.