Move your player up and down with the Arrows Up and Down or "W" and "S", and rotate using the arrows Left and Right or "A" and "D";
Shoot you Red Enemies using the SPACEBAR;
And open orange doors using the CTRL;
To enable any other item, just run over it.
Esse negócio vermelho passando torna o jogo 2D. Mas curti o jogo, de qualquer forma :)
You are absolutely right Glauber, and this is really simple to fix, I'll se if I can upload this as a bug fix.