Good game and good music, but there is a large aspect of luck involved to score the 2 million. One time I got a 71x multiplier and the next I got a 49x multiplier, and I didn't hit any reds either time.
Overall, I'd say a 4/5.
I'm pretty damn pissed after playing this entire game only to get 679/700 required headshots... I was so sure I had way over 700 after the game was over. I guess the hits with the chainsaw to the head don't count as headshots...
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 "Ring Pass Not"){kind=icon}
 "Rings and Sticks"){kind=icon}
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 "Gamma Bros"){kind=tracking}
 "Generic Defense Game"){kind=icon}