Damn. I was doing well, with a high rate high damage triple shot and decent speed as Judas (plus Book of Belial, so I really was doing pretty well). Suddenly I get Dr. Fetus. My rate gets reset to 1, but I keep playing for the lulz. I fight Fistula (
http://images3.wikia.nocookie.net/__...29/Fistula.png). First shot splits him into 4. Next shot (which takes ages to make because the rate is so slow, meanwhile I'm getting hit) splits each of those 4 into 2. So I'm now running away from my own explosions in a room with 8 fast-moving blobs.
Needless to say, I die quickly. Despite the appeal of infinite bombs: Worst. Upgrade. Ever.