When you press space to speed through to the next round., the cooldown timers for the spells should speed through as well. For example you hit spacebar at 8 sec, 8 sec also disappears from the spell cooldown timers.
Huge fan of tower defense games and yours is outstanding. I love the fact that you can have a crazy puzzle of turrets, or create an army of hulks, more animation would be a great addition to the next installment of Kill the Heroes but overall a spectacularly fun TD game.
Also, more use of the star system would be great, this game should be a little over-challenging as it should take a little practice at a level to get 3 stars all the time. End game I would like to have the option available to go back and get my 3-star on some ones that were just a tad too difficult at the time.
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They do! Only just recently added this feature, however. :)