the game is fun..but not being able to go back in the levels with all the stuff you bought from further levels kinda kills the game for me. id like to be able to go back and murder stuff so much easier..or at least be able to farm more energy for upgrades for more current levels please so far 3/5 stars keep it up your going somewhere!
lower quality button is needed post haste!! also would help if you could cancel reload by shooting( just make it an option like screen lock) and make screen locked by default
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