A berretta? Really? First of all, it looks nothing like that, second, it reloads a lot faster, 2nd, it doesn't reload everytime you shoot, third, it is nowhere near powerful enough for a one-hit kill. Especially with resistant-looking aliens. Get your crap straight before making a game, stupid, 2/5
Bad implementation in the way that, the first one gets you nowhere, then the 2nd one gets 10x the money, then the last one wins... Also is the propeller even supposed to do anything?