Really polished game, also quite hard straight from the beginning.
You should add some rewards for destroying ennemies, like giving back some health or stronger weapons.

You've managed to multiply Flappy Bird frustration by adding enemies and weapons :D Fun and addiction has been also multiplied :)

Very hard, but excellent level of polish. Great feeling of speed and impact. Well done!

This is an addictively hard game. Really good sense of speed with the background too. Good job.

Nice game but I am really bad at those ones, I enjoyed the sprites colours :-)

It looks pretty cool but i had a hard time with this one, mostly from the way it controlled and how fast it was. 

Challenging but satisfying. Just some of the good points. I'm really impressed at some of the visual effects you've managed to squeeze out of a little pico-8 cart. Explosions, ship trails, all that looks great. The background parallax is a great way to feel the speed. Collisions are really good. The speed of the game is spot on. It all works well together.

Some little things that need some tweaking, at least in my opinion:

• The screenshake is good screenshake, however it is a bit over top. Either the range between character bounces is too large, or the shake lasts too long, it is sometimes overpowering. I think some minor tweaking to the timing and range could fix this easily.
• The sound effects for launching a rocket and dying are these short beeping noises. They really stand out against the great explosion and shooting sound effects.

Nice! Love the visuals and the effects, very hard to control at first but fun once you get going.

Looks great. The explosions especially with the shrapnel and smoke trails were very good. It was fun but a little too difficult for me. I think it would be an improvement to increase the fire rate and reduce the force of gravity slightly.

It's hard but I love the dynamic gameplay and visuals! Well done : )

The art and the visual fx are really well done. I loved the game, but I wish it was a bit easier :)