The game is quite simole, with "A" you can move in the direction the player is facing (only if the player is touching the ground). With "Space" appear an arrow that move changing the direction, if you press "Space" again when the arrow is displayed you can jump in the direction of the arrow.
The "D" is for shooting (this functionality is not well implemented)
If you want to give a second chance here it is. :) thanks for playing.