1. It would be easy to put in intro blurbs explaining that if you hit two damage rolls adjacently you unlock the other slots that are in that column/row and moving to unexplored areas increases your health even beyond max health but you won't retain that health once you lose it beyond max health which increases when you level up.
2. There's a bug where if you click too fast on next spin, the slots won't show up.
3. Do you have plans of making damage rolls actually multiplicative or should they by +(number) instead of x(number)?
Very fun and addictive. Like minesweeper and gambling is fun and addictive. Just needs some RPG mechanics sprinkled in like different ways of traversing the map, equipment/skills that alter your slot machine and how you do minesweeper. Things I bet you're planning on implementing. Is minesweeper copy written at all?