Thank you for this, and for writing it by hand. You were right about pause, so it's in now (v1.5). There's a II button top right during a run, P or Esc on a keyboard, and the game pauses itself if you switch tabs or apps. While it's paused, a stray tap won't drop a slab; only Resume starts it again. The pause screen also shows your current perfect streak. I'm glad the smoke and the feedback worked for you. Polishing a small game is about all I have to work with, so the PvZ comparison means a lot.