A very simple concept which I think was quite well executed, but it just might not be my cup of tea.
But first, the good things:
Actually great art and music. The game is just generally well put together and therefore your game deserves great presentation. Good job!
There is polish and fixes that help with making sure controlling the boxes and joining the boxes together is as easy as possible.
Some caveats:
I think there should be a way for BOB to regain speed after losing speed after using the floating platforms. Maybe around every 500m or some fixed distance, to reward player for balancing their usage of floating platforms.
Its actually quite a good game regardless. Kudos!