Tutorial down there;

A fun little boss fight, harder as you continue <3

Tutorial:

 move:

 left and right arrow keys or A and D.

gameplay:

Every time you move you lose a coin, if you move less or equals moves to 5 every 5 boss moves you'll get get 1 coin + the times you move if you move more then 5 get 6 coins; if you have less then 0 coins, you lose.

if you have more then 3 coins, you can attack by pressing space key, when you attack the boss gets faster.

tip: attack when you have 8 coins so you have 5 moves for safety, you don't have to e in-front of the boss to attack.