Okay. First the level doesn't really look good, just really blocky with a few tile bugs.
Second, hard levels are fun, but levels where you get hurt no matter what you do aren't. There were at least 2 times I got hurt and couldnt avoid it. Regenerating enemies aren't fun either, once I kill an enemy I expect it to stay dead =P. The boss battle with all the bubbas was also pretty much impossible when you have no ammo and no anything. Too much of an overkill imo, at least give the poor player a powerup or two =P.