Boota

Pig Mole Boota
Simmon's pig mole pet, Boota. For the majority of the series, Boota sticks around Simmon and does very little. Once Boota saved Simmon and Kamina by willing removing its rear end (which later grew back) as food for Kamina and Simmon, revealing they can't pilot when hungry.

Evolved Boota
While in the Space-Time Labyrinth, Boota assumed a human form due to him absorbing remnants of Simmon's spiral energy throughout the course of the series. While in this state, he was able to defeat a fake Anti-Spiral Emissary in one hit. Since he was now intelligent, he realized he was trapped in the labyrinth like everyone else and that this form was caused by him being in the Labyrinth.