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
I found it cramped. You might not, though.
Well, don't let me stop you. (I would, 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.