I really liked this ! I think I cleared most of the levels, but I ended up getting stuck haha
The controls were smooth, the goal was clear, the presentation was awesome (graphics and audio, nice job !) and the gameplay was fun!
I do have a few suggestions though ; At first, I didn't get what the "slow down" areas were, because I thought they were spikes.
However, I really liked that you made it so that the platform moves on a grid, makes it sooo much easier to control.
Overall, really cool game, well done ! :D