A great little game.
It doesn't lag at all even when I have my Rapid Fire on 0 seconds Cooldown.
You really notice the door cooldown when my dash had 0 seconds cooldown ;D
I did find a bug, but I don't know what caused it. I somehow found a second coin pouch.
And I'm not sure why my power shot got to deal over 180000 damage xd
I hope and it seems there are going to be more areas apart from the castle.