Liked it a lot, nice sprites I really like the detail of the different death animations, the music fits nicely and the choice of respawning in capsule or room is pretty good(until my stubborn ass decides to constantly respawn from room with 1HP)
Level design is nice although the camera felt too close to the character sometimes and you had to do some leaps of faith (the one where you fall into water with a moving laser that you can't see is pretty unfair even if you already know it)
I enjoyed the funstrating experience and using life as a resource to get through spikes.