way too easy on easy, nightmare is too easy too, i finished this game on my first try,
heres some tips, the first gun you should get is the shotgun, do not buy any other things until u can buy a machine gun, with your machine gun alone you shood be able to hold out for at least 7 more rounds, until then, save up your moeny and cover your whole base in heavy turrets.
aeliviate is rong, the best way to kill the snake boss is to use the laser gun and walk backwards in a straight line so the snake is slithering in a straight line and just shoot down his mouth with laser gun
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