From Sonic Retro
(Redirected from E-02 Rhinotank)
It's a rhinoceros-like badnik apparently based by the Rhinobot, both in design and purpose. They patroll an area back and forth while iddle and charge against a character when they spot them.
The Rhinotank made its debut in Sonic Adventure, where it shows up in Emerald Coast for Sonic and E-102 Gamma.