Hey, thanks for the comment!
I wanted to wait with a tutorial until the game was done, but you may be right. I'll think about some sort of "Help" screen in game to direct the player (and display the controls).
As for the WASD controls, I have an idea how to implement it, but it will have to wait until the GameOff voting is done. Thanks for the idea, though, it gave me some inspiration to move away from the original idea and experiment with something different. We'll see how it works out later. :)