[davbryn]

It seems pretty stuttery on Safari running on my Mac, but was fun for a while - good job!

I didn't actually like the explanations throughout the first few levels: sometimes it would be nice to figure things out on your own; feels like you rob the player of the reward for completing the level when you explain it to them before letting them figure it out? Especially since they can restart pretty quickly: case in point, let them fall into the red and die early on rather than explain it?