To make clear, you only get red coins from events/contest. The current max is set at 4000. The maximum/minimum boost upgrade won't be a buyable feature.
@cytherio for lower players who only get 3 pixels for a kill, it's pretty good,
If you are higher and have some higher stats, there is the option to just buy attack from the mystery shop
r4c3r, Racking up combo's on training zone 1 is useless, since you want to hit as much as possible. Grinning colossus is here the best for. Changing combo's for money isn't fair.
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