Got to level 8. I was hooked for a while even though I was very frustrated. The game could be a little easier, like with less button mashing and the slimes slowing down for less time but otherwise this is a very simple and fun premisse with a lot of depth, the more you play the more you are planning and calculating how much time you might need to pass a level, and past levels aren't a drag to play through because each one influences the next, so the more time I get in the past the more I can get further on.