Bug report: Beating the demon queen on day 30 caused me to somehow lose the game, as i was met with the bad end game over screen. While playing the minigame to increase your speed, the entire minigame broke, leaving whatever sprites I tapped on screen, and the minigame was completely broken.
I would really love a way to save my progress, or at least a post-death shop, where i could purchase upgrades to make my next run better. Other than that, this game is great, and I hope to see more of it, in the future.