Press space to start. The boss is easier than it appears. press all arrow keys to move (ex: left arrow key= go left.) Press h to do a long range attack to the right side. Press g to do a long range attack to the left. Press B to do a physical attack. There is a 2 secret moves for the blob. The boss's ultimate attack is possible to dodge or cancel. I wish you luck. Eat the green and blue apple to restore 1 health.
I made this myself. My code is a little messy, so don't remix it.