I really like the idea, but I think it's a little bit too hard in the current iteration. The lights don't stay off for long enough, so it's more of a timing, execution game than it is a puzzle platformer. Also, it might be good to show a dim/transparent outline of where the lights will be when they turn back on. Also also! it might be a good idea to have the coffee respawn in your hand after it hits a light, not the end of the screen, as that added with the short light-turn-off time makes it tricky to have enough time to move around. I really like the concept though, and think you should keep working on it! That's why I'm giving so many critiques (not to be mean, but to help!!!)