Big, and rambling. Works as a practice level.
Another modification of Waldo World. New textures, light switches, a control room, a teleporter maze... Not a bad job at all. (May need more players to be fun than Waldo World does, owing to its larger size.)
Big. No docs. Plays okay, though.
See Phor Play
Well, don't let me stop you. (I would, though.)
I found it cramped. You might not, though.
I hate the textures, but the level's pretty fun with three players. Look for the Spanker!
Never played it, but might be fun with 2 or 3 players.