The "Go" button bugs out a lot letting you skip events or end up in negative distance past a castle. Could also really use a "Sell All" Arms and Armor button. Dragging gets to be a pain.
Insane indeed. The snakes keep moving even when you're just pushing against the edge of the screen. You can use that to push the snake so far off screen it can't get the marbles. But then in level 6 or 7, you can push yourself off the screen and after a bit you fall back in on the opposite side. Nice idea but way too frustrating with the snakes sometimes taking up half the screen.