This was good! The art is awesome, the music is great, and I love the simple moves the character makes! My critiques are:
I wish the text font and arrows matched the art style of the characters
The best way to win is just to mash all the keys at the same time constantly, so you should add a penalty for pressing the wrong key
I couldn't tell when I missed something, so there needs to be an audio + visual que when you miss an arrow.
Overall though this is good!