you need to check the shop in the game, the sales system cant even do basic addition, either that or its a massive bug or a complete thief and rip-off merchant WAY over charging for upgrades.
why doesnt it let you spend money when you have it, only when it wants to let you. i have the money to buy several upgrades but it wont let me, why not?
what is the point of badging insane mode on this game. proof if you needed any greg not only doesnt play the games he badges he never tests if the achievements are possible either.
you really need to remove WASD to fire in each direction, makes it FAR too hard. just have 1 fire key and the game fires in the direction you are pointing. have flight direction controlled by mouse too?
AWFUL! you cant see the map or where you are supposed to deliver to. whoever wrote this needs to play ghostbusters to see how a map really should work.
Zombocalyptic Extravaganza Badge isn't possible, not with the plain handgun. The zombies move too fast & the gun doesn't reload fast enough or hold enough rounds. You can get to about 1:49 but not much further, certainly not 2 mins.