Pretty good submission! It is clear you care for the details: good animation, varied enemies, power ups, increasing dificulty.
Attacking using the dash is satisfying.
Now, what could be improved:
1.It wasn't that easy to grab the power up at times (you have to be below it), but in the end I discovered you could dash in the air, so maybe that helps.
2.Allow player to use either WASD or arrow keys to move the character
Congrats!