The Miscellaneous categories are:

Defense: Either a Tower Defense, or a Defend Your game. Examples can be found on the net.

Driving. A game with a strong car element, e.g Grand Theft Auto, Gran
Turismo.

MMORPG: An RPG-like game with many other gamers, played online.

Rhythm: A game that involves pressing buttons in time with music.

Roguelike: A very difficult, permadeath RPG, text based.