Good game overall.
VERY detering aspects: 1) LAG when a lot of stuff on screen. 2) Laser is crap, bazooka is a lot better (although it is more like a railgun, not a bazooka). 3) U can't upgrade more than once per screen, e.g. you can't get all armor upgrades at once even if you had the money. 4) Weapon effects should be stackable, it's pretty stupid to invest a lot of money and only get a slightly stronger single hit effect in the end.
Ok, everything went nice, and then - 2 healing blocks and 2 building blocks, no way you can beat this. Even with max crit and splash and ping-ponging it about 10 times on the heal block its impossible to destroy.
I've found the best way to invest points is: max out wisdom (40), then start maxing strenght. I get 10 dodge early, but before that I get 1 point in almost every passive, and 4 points in destruction. Wipe looks like a useful skill on later levels.
Ultimate weapon needs to be a modified LASER, not the regular louse pistol. Weapons and shields never reach to top of the stat bars in the menu, which makes it kinda redundant. Best weapon should cap at least damage. Pretty good shooter overall.