This is giving me some major Flash game vibes, for better or worse.
The core mechanic is neat and I like what you do with it with the level design and all and look forward to what else you have in store. I think it would be neat if you could speed up the platforms by holding RMB and slowing them down again by releasing it so you get more control over that.
Other than that things feel about as amateurish and unpolished as I'd expect from one of those old Flash games, or indeed an early demo. Movement is my main gripe, everything feels sluggish. This could be a lot more engaging with more satisfying movement.
There's a ton of potential here though.