I really like the game. I find the gameplay unique and challenging. Overall a great game :)
Side note: if you lose, go back to the menu, then hit start game, it increases your score/high score.
When I did this a few times the tower level just started infinitely climbing into the thousands/ten thousands.
I played the game again and noticed if you hit the X and hit start again, the level increases. This also eventually causes the level going up infinitely. It seems to be going to level 8 that is causing the level going up infinitely.