Beep-0

Beep-0 (pronounced "beep-oh") is an ally character introduced in Mario + Rabbids Kingdom Battle. It is a small robot assistant with blue "eyes" and rabbit ears, and serves to guide the playable characters throughout the levels. Beep-0 provides commentary throughout the game (with his color changing depending on its emotions), and is absent during battle sections. By default, Beep-0 does not have rabbit ears; only gaining them after entering the Mushroom Kingdom.