Couple things:
- Color the cleared number floor tiles differently, when all the surrounding numbers add up to match? For example, here I've marked a square with a 4, so now the 16 should light up (as its adjacent numbers add up to 16 now) and that would hint to me later that I could click its surroundings safely to advance
- When you click to Level Up but have no hearts, the adventurer temporarily regains clothing to shake his head...
I think revealing the gnome with the crystal ball caused it to give me 0 gold! What a ripoff!Never mind - revealing the gnome with the orb causes him to run to another empty space. You can find him again and this time claim your 10 gold.