Local multiplayer only - needs two people and two gamepads.
Local-ish multiplayer only. Requires another person.
Requires hardware: a better set of ears. Mine aren't good enough.
Local multiplayer only (requires another person)
Local multiplayer only (requires second person)
requires either an ipad; or a mac, whiteboard, markers, and projector
multiple controllers for multiplayer - not sure if singleplayer is possible