i don't like titles
well everybody is giving their sugestions so i'll give mine too. i don't think that going out of the shack will improve the game and the upgrades could be a bit cheaper. there could be support upgrades too just like someone said about people teaming up with you. and there are two things that this games needs awfuly!
1- I know it heat up. but it only heated up at stage 15! need to be faster!
2- A SAVE FUNCTION! this game needs this more than anything to be perfect! i won't be scared if it makes frontpage.
thas all.
cya B)