Almost forgot to play this one! It's a really cool game for being your first, but it seems a bit unforgiving. If you run out of air(?) it takes 4 steps to die, so if you aren't right next to an air capsule when it happens, you're just screwed. Even if you're next to a recovery kit and there's an air capsule 5-6 steps away, you're doomed... So that could use some adjusting, I've died too many times to a capsule a few steps too far away.
Also, I did not see that there were items to collect at the top until the second time I had picked one up, the colors are too dark! Love the gameplay and having on-screen controls so I don't have to guess at which keys are being used.