Thanks! About the keys deactivating, is it possible you pressed the alt key? The alt key turns all the activated keys off and all the deactivated keys back to on. If it's not the alt key there's a bug I need to fix hiding somewhere.
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Oh yeah it was probably the Alt key, sorry i didn't catch that while playing :D I noticed even the shift key does something to the keys. Maybe you could color them in a different way or let the player know in some way that they are "special" keys, like the space bar. Anyways the alt key is a nice touch now that i know it works :D Nice one!