You use the arrow keys to move. Sorry if you didn't realize!
Oh no! I didn't realize, sorry for that! But it seems your game really needs a tutorial and a main menu.
I realized something about the game, you can skip rounds by getting back after starting the round.
And when I died, I realized that I had my money -14. I don't know if it is made on purpose tho.
However, I really loved the concept and artstyle! And Morshu reference also made me smile. :)