well, marijuana is classified under hallucinogen, but thats mostly because of the time distortion, and it doesnt fit into the other categories. and ive heard alot of people say theyve seen weird shit on pot. i have gotten FUCKING BAKED on brownies twice. and its not pretty....everthing is in slow motion, and looks like theirs a strobe light on in slow mode. its horrible...cuz i didnt know when exactly i slipped into that state, thats the only scary part.