I liked it
I enjoyed this, quite challanging, and in the last 10 levels I died alot, a whole lot. but I did beat all 50.
advice to others, get to investment for the first two bonuses, then save for exploder, and then investment for all the rest. dont worry about the sheild bouncer till later levels, damage is MUCH more important (first and second, upgrade you should buy toss up wether you want sticky sheild or thrid damage next though , and you should try to upgrade damage so that for the first 20ish levels you can kill any tank with one of its own shots (except the ballistic tank)) Now I can do basic math so I didnt find aiming reflected shots that hard. butif you want some advice then the shot will generaly go near were you have your mouse, but slightly farther away from the source of the shot. Kill missle tanks first, VERY important the missles are slow and deal the most damage, meaning they will generaly hit you the same time as other faster shots.
a note to the creator, you should probly have using a continue (from save) errase your score, cus getting to the later levels without dieing once, thats impressive.
Another note is that the -20% damage upgrades were pretty useless, I picked up the missle one cus i thought you could get multiple of the same one (I wanted to become immune to missles, cus they are what mess you up) but they're each one shot upgrades, which makes them a wast of a bonus. I would suggest replaceing them with some sort of attack modifyer example
Guidance: Missles reflected from your sheild will turn toward enmies
Napalm: Fireballs reflected from your sheild catch the ground on fire for a short time when they hit enemy tanks.
Resonance: Dissruptor shots have a 50% chance to bounce off enemies in a random direction.
Penitration: Ballistic shots peice armor to hit internal mechinisms, slowing down eneimies
