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Blue Shop Coupon

Reduces the cost of all Sushi Shop upgrades. More coupon levels make that room’s upgrades cheaper.

Field Value
Cost growth 1.35x per level before New Game+ adjustment
Cost behavior Room coupon upgrade. It reduces costs for this room but does not reduce its own cost.
Player impact Improves the room’s income, speed, cost curve, or support systems.
  • Sushi Cost Reduction: makes the related shop cheaper; the discount grows with level and uses diminishing returns.