Oh also, sometimes my character just stops moving. Do some enemies have stun effect? Usually either clicking on the screen fixes it, or turning caps lock on and off. This concept should be built on, you got a good thing going here.
Good stuff. For those complaining about having to wait, there is a send next wave button... the best strategy seems to be to fight the enemies right at their spawn... what kills me every time is a giant massed archer army that just keeps building up and building up, i can't even run in and kill a few, cuz i die first.
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