Actually to amend to my last bug on lvl 15, I found the bug before getting the achievement. I'm not sure what triggers it, maybe the fact that I turn on mouse control? That's the only thing I changed.
Found a bug: after getting the patience achievement on lvl 15, if I try lvl 15 again, the boss will get stuck on the second position (the one that it shoots from right side of screen)
There's a bug... When challenging the bosses with only fire rate upgrade, when I receive a shot drop, my damage is increased to 2, but when I lose higher level shot upgrade, e.g. from lvl 3 to lvl2, or lvl 4 to lvl3, I lose the damage increment but still has the multiple bullets upgrade.
Game beaten in 2 hours. Yes I modified memory, and no I am not ashamed.
Hey ceptri, did you use an array to store the number of each item/ship? Cause they are all together in the memory.
 "GOSPACE"){kind=icon}
 "Apocashop"){kind=icon}
 "Galactic Clicker"){kind=icon}
 "Beyond The Universe"){kind=icon}
 "Mark Of Darkness"){kind=icon}
 "Forgotten Dungeon 2"){kind=icon}
 "GunBot"){kind=icon}
 "Storm the House 2"){kind=icon}
 "Monster Slayers"){kind=icon}
 "Frantic Frigates"){kind=icon}