A fun puzzle game which is really nicely presented. The art style suits the game and is consistence throughout (maybe except the pause button).
The concept was self explanatory I found and I picked it up on my first playthrough. I managed to get over 120,000 points but the high-score disappeared straight after so I have no proof. I see this will be an upcoming feature though from the description.
Difficult to suggest improvements as this is a very polished, sleek and feels like an almost finished game. But I can see how you can expand on the puzzle formula if you decide too (eg a challenge mode, clear the numbers etc).