It's not too bad. Things start getting really rough once the army gets involved around lvl 9 but you just have to keep tossing cars, vans and tanks and using them against the people. The controls are pretty good and really self explanatory. Yes lvl 9 is tough but it IS a hard badge after all.
Well, the "falling through the floor to the infinite fall of death" got me once and the game reset itself on me once. Both are annoying. The stink beans aren't what bothers me it's the MICRO-stinky beans that are hard to spot and almost impossible to hit (but they can still kill you just as well). I got to 300 kills then I took all the ammo I had left and went postal on the enemy. I died at 352 firing away with my pistol.
This game is good but I liked the SCGMD2 more. The number keys are just a little bit more akward to used than the "home row" keys. I accept that this'll probably get badges soon, but I don't have to like it.
That boss was seriously stupid. I jumped up on a higher platform and he let me keep shooting him in the head. All I had to do was duck periodically when he reared up to fire.