you should make the nukes stay up for longer, make the timer longer on the invisibility, be able to move while invisible, add a delay on when you can use it again, stop making me spaz the fuck out (i think i can help you out there) oh yeah and you should get 1 point for every second you are alive and you get 5 points for every enemy thing you kill. these are just my opinion though cause i play way to many games
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also score doesnt reset to zero after you lose