You can use consumable traps with ` key(the key on left side of number 1 on your keyboard) and you can rebind it to other key in option menu :)

Wew, thanks, i've look at the control key like twice but didnt see it, i have a hard time playing this, this is not the typical TD i've played before nevertheless its fun :)

I have mine bound to my Q. I find I rest my hand over the WASD keys by default, and use the number row keys for trap hotkeys and Q is just the most natural button for me.

If you have any qustions, Iv been trying to make some videos for the game. Any headaches let me know, check out the "Ask me how..." thread for some videos Iv already made.

For me I think it defaulted to Q.