Worst water levels IMO:
1.Labyrnth zone in Somari (As if this wasn't posted enough. I admit,I'm stuck on ACT 1.)
2.Panda Prince (Awful music makes it unplayable)
3.TMNT (If the shocking weeds weren't there,the stage would be playable. >_< )
4.Quake I (Not BAD.But boring. :| )