pretty fun, however...
.. it gets points taken off for a few reasons. the first is of course the lag. especially on the hydraulic stages, pressing the move key will do seemingly nothing, until about a minute later when suddenly you start going in the direction you were mashing before non stop, and attempting to correct this only leads to more trouble later on. and i can't even count how much ammo i wasted to this same effect. the second problem is the weaponry. i managed to keep a shotgun almost the entire game, and with it all i had to do was camp in a corner and spam the mouse button until everything in front of me died. lastly is the upgrades. the top turrets were all but useless to me, and so was the multi jumps. and it's pretty hard to utilize speed when you have no control over where your character goes half the time.