This enemy stands in a same zone spinning. When receiving attacks that do not destroy it upon contact, it is pushed and can bounce off the terrain. After some time, it prepares to slide by lying over its belly and preparing its rocket. When the rocket pushes it, the Penpen EV goes sliding in floor quickly and for relatively long time. When colliding with walls, it is pushed to the opposite direction. If it has not left the screen, it will return to the spinning position. During the slide, the Penpen EV can still be shot with frontal projectiles if the player and the Penpen EV are at the same height and the Penpen EV can pass through small corridors, like Mega Man can during the Slide.
It is affected by gravity and can fall off terrain. If its rocket slide pushes them away from terrain with a set height, it is boosted by the direction it is sent.
- The 8-bit sprites for this enemy were designed by Zedicon, while its code was adapted from the Megamix Engine.
- In Mega Man & Bass, this enemy acts exactly like in Mega Man 8, except that shots no longer push it.