battles should be more interactive, the money thing should be like you build an empire and people like mini-enemies like barbarians pop up and attack and etc...
i'd give a 3.6
more units with customizable weaponry
Uber it's hella fun when you have a super uzi near the end and the room is crowded you just mow them down and they can't kill you.
for some odd reason i've neve went past 124 so i couldn't get the last upgrade for the railgun...
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