Hm... I'm not a big fan of levels and tilesets, so this is probably my first reply in this thread. It would also be the first level I am making that has nothing to do with the creation of server tools.

Neobeo's Firetruck:


This single-player level involves going round and round a pumper, but exploring it thoroughly. It is driven by none other than Jazz himself, and like all good firemen, the level will be nothing but confusing puzzles.

NB: MS Paint FTW.