User blog comment:Kagimizu/Alright, Straight Up/@comment-2116776-20120305131125/@comment-1272757-20120306011932

I didn't; the guys who make Medabots did back in 1997. There are seven categories: Those are your options.
 * Two-legged: All-round and balanced. Most common type.
 * Multi-legged: Specialized in close-combat, varying durability.
 * Float: Defensive, evasive, and versatile, but slow.
 * Air: Fast and evasive, especially on dry land. Weak to anti-air attacks.
 * Wheel: Urban specialty, but fast and good at dodging critical hits.
 * Tank: Very slow, but equally durable, and capable on all terrain.
 * Sea: Highly evasive, but very slow out of water.