Please change the download link to "Windows"

Very interesting concept. A few suggestions though:
1) See if you could increase the movement speed a bit. It's rather slow.
2) Have a meter that allows you to freeze time for a certain amount of time. This is so I don't abuse freezing time for the entire round or game.

The fourth level or so got too difficult for me to finish as there are new enemies that are immune to the time freeze.

I felt really powerful being able to freeze time. Really great surreal atmosphere. It caught me off guard when I saw beings unaffected by my time freeze

My game crashed when I collided with a red guy

Haven't managed to get past the fifth level - the one after the introduction of the enemies that don't freeze - as the enemy just keeps going through the wall. Using the ones that do freeze to stop them is a very nice use of the time stop mechanic though. It crashed whenever I died, but didn't stop me going back in to try and get further. Nice interpretation on the theme.

I'd recommend at least allowing a diagonal move, and perhaps just make everything move a bit faster in general.

I didn't understand what to do in the game, the enemies seemed to be stacked impossibly on the second level and were nonexistent on the first level. Also, it crashed upon collision with an enemy.