Wow thanks for taking the time to play our game and make a video!!
Enemy readability was definitely a struggle. Trying to strike a balance between vibrant scenery and easily visible enemies is difficult with the limited color palette of the Pico-8. We will definitely address that in an update.
I included gameplay instructions on the itch.io page but I think I'll add some sort of key within the game as it's not entirely clear what eveything does unless you have read the instructions (ie. The blue bar being a power shot that's activated with the Z button).
I also noticed you weren't a fan of the controls. We tried to give weight to the players ship but sometimes it seems a bit sluggish.
We appreciate the feedback. Thanks again!