The Underground

Strike the cracked floor 3 times in one show: it collapses into a 30-second bonus stage full of digger moles.
How to find it, step by step
- In arcs 1-3 a floor tile with NO hole appears on the second farthest row, with fine cracks in it.
- Stand in its column so the automatic strike hits that tile when its row reaches the line (first hit = The Cracked Hole).
- A seam runs up the column and the crack reappears further up, one stage deeper. Hit it again, then a third time.
- The third hit collapses the floor: 30 seconds in THE UNDERGROUND, then a treasure chest (1 of 3 rewards).
The stage lasts 30 seconds in a cave under the fair: digger moles in miner helmets tunnel in from both walls (every 4th one golden, x2 score). You lose no Audience and earn no XP down there, and the show's distance waits for you. It ends with a treasure chest: pick 1 of 3 rare upgrades.
Reward
A treasure chest with one rare upgrade.
Tips
In-game hint
What is under the machine?