I really enjoyed it! The visuals are great and the concept of moving certain values in different slots (even in the level itself) is a really interesting concept. I'm curious to see how you implement this concept in a more variety of ways. 
If I have to give one point of critique, it would be that hitting the pauze at the exact right time felt a bit annoying at some times. But with some more balancing I think this is not a big issue at all. Overall, great job!