Pretty fun little game. I wish automating crystal power were possible, especially when you're forced to use it in a certain part of the game (which I cheated through rather than spend hours and hours trying to build up while slime rains down on you uncontrollably). Definitely lost steam once I was just sitting in a battery charging spot unlocking items. I liked the music, the characters and dialogue was entertaining, and dealing with the more frequent waves at the very end of the game was interesting.