phew..finally got there...some useful information - 1. the game gets hard beyond level 40 2. there is no more dodge ball after level 40 - there are too many enemies and too many bullets and we need to rely on bouncing the bullets onto the enemies 3. don't invest bonus points on interest, use it on anti matter shield, heat seekers, inferno, emp and reducing damage from everything other than shells, in that order 4. shield bounce + heat seekers is a nice combo 5. make sure to perform full upgrades on energy infuser, then use earnings to get at least 120 energy, 250 base health 6. take all your luck into level 50!
Level 1: 0+0=?, Level 2: 0+1=?, Level 9: 10+5=?, Level 10: 1234362*-290181+3873628=? Well, that's how crazy the final boss is. Damn I wish I had that minigun!
Seriously, 14 levels without getting hit? And the final boss? Great game but ridiculous expectations! Maybe if I had the same set of weapons the final boss has lol
 "Cursed Treasure 2"){kind=icon}
 "Shield Defense"){kind=icon}
 "Gun Mayhem"){kind=icon}
 "Reactance"){kind=icon}