the bug that selling multiple same kind of block (exp.accidently selling two resizing block that inflated, at once), or building same block in same place, all of those that can burn up cash, should be fixed. and also, the jump block should make character move while jump, not just jumping.
make sure to upgrade homing missile interval into 0.005s before upgrading rocket interval into maximum;; previosly UPGing missile locks the interval UPG of homing missile
second boss is harder than final boss. the third boss just have more hp, you just have to move right and left. but second boss have homing missile that have a damage that almost on-shot to kill you.