An absolute classic flash game. Really fun mechanics, great physics, and the sweet satisfaction of blasting enemies into pieces. It's not intentional, but grenades can definitely get you into fun places. Really good game, but it's definitely not perfect.
For starters, I personally think it doesn't make sense for the robot enemies to be as agile as they are. I kind of laugh at how weird it is, seeing these heavy dudes jump and run around, but that's just me.
I also wished the enemies (and maybe also the player to make things fair) had reloading times or something, because it gets annoying really quick when enemies just spam rockets or go full mag dump on you. It makes it really difficult for you to mag dump them back, especially if they have shotguns (which BTW are extremely overpowered weapons considering how early they're introduced in the game. They seriously rival a fully upgraded plasma cannon sometimes).
I think the biggest gripe is the friend AI being borderline suicidal in the last few levels, excluding the last level since he needs to die. He keeps running guns-a-blazin' into dangerous situations and easily killing himself. It's like taking care of a toddler and it's annoying. Also it's too easy to glitch the elevator on the third level.
Maybe I'm bad at the game, idkoc. Overall, pretty awesome game nonetheless.