There is a bug... whenever I faill a world, I lose the skillpoints I earned throughout it, but my level doesn't diminish... which means each time it's harder to actually level up, and given there is a cap, each loss means you get fewer skill points on the long run...
Way too easy, the turrets are too overpowered, and the exp needed to upgrade is off-balance.
Needs more snipe-related upgrades, and less tool related ones...
still, pretty fun for the time it took me to beat it...
 "Sentry Knight"){kind=icon}
 "Snipedown"){kind=icon}
 "My Pet Protector 2"){kind=icon}
 "Phage Wars 2"){kind=icon}
Refresh the game. Anyone else having this issue, please refresh as you're on the version that was hotfixed!