I thought your game had an interesting concept (being slow instead of fast), but there are a few issues with it.
The first and arguably most problematic is that the button to release the trapdoor, 3, is not explained in game. It's not even mentioned on the games page, it is, however, mentioned at the end of the game's trailer. I was confused at first as to how to get the game working.
Some other points, the blocks that fall on the sky are not easily avoidable and they spawn quite close to the player. I also noticed issues with some of the animations that you used.
However, I thought this was a decent game in the end.