Very Good Puzzle experience. The difficulty ramps up extremely well I confess I couldn't get past level 4 but I feel that's due to my own ineptitude rather than anything else.
Visuals are clean (the character is a different resolution and does clash with the hd art but in a game like this it's not too much of a big deal).
If you take this further I would love to see more solid themeing. This all feels very abstract and I would love to see the tower being represented as a more grounded tower in some way. Though I appreciate it would be difficult.
Very original and fits the theme super well gold star!