The puzzles are neat, though I don't know if the physics of a smaller block being able to push a bigger block against the wind but not the other way around are real. I was having fun kiting as many blocks as I could bring with me to furter levels (got to three extras, then I had to reset) and a bit annoyed I couldn't cheese any puzzles with them, but that's good game design. The player felt a bit slow especially since you sometimes needed to go all the way down a corridoor to see you need to lug a block there. You should also make the screen bigger, you can change this in the edit game page. Being fullscreen added a lot of information and made the puzzles easier. The music is very cool, I like the rollercoaster effect of the synth arpeggio. The art is really good, I like it a lot, but the astronaut feels kind of out of place. The invisible walls at the end also prevented me from going all the way to the 'thanks for playing' text. Also a bit wierd to be exploring a dead space station with fresh blood all over and come to the end to an upbeat space track with nothing more, but I totally understand you didn't have time to add a bossfight. Scope and story are always annoying to combine. Overall, it was a pleasant experience, and I really enjoyed it!

When you restart level, the blocks keep their velocity. So if any blocks are moving when you are restarting, they reset their position and start floating away, which is very frustrating.
Also at the end there was some invisible collison so I couldn't reach the end.

But I very enjoyed the mechanic. It's a good game.

Really cool puzzle game, and great use of the gravity mechanic!

interesting game and I quite liked the graphics; also found a bug (or maybe a feature) that you can push yourself with a block and move much faster

Very good! I like a lot the mechanic, is very original and fun! althought, the theme is not very aplicable and the sounds can be improve, for the rest. very good game I like it