Last edit. Reached area 180, and despite maxed out weapons and paying for"grenades", the game will still screw you over. Besides the fact that when the story stopped at lvl 100 (and became more appealing as far as I'm concerned) as you go deeper with no info, it's all spend, . From scenario to scenario your damage changes, even with full upgrades on weapons. (spend) Same with grenades. (5 only - spend!) Decent shooter, and that's all. No different than many less expensive games out there.