Every wave in tiers 8-9 pays one column when it ends: the one for its kind.
What each wave pays
10| Item | Regular wave | Final wave | Big final wave |
|---|---|---|---|
 Scrap Metal | ×1 | ×2 | ×3 |
 Broken Glass | ×1 | ×1 | ×2 |
 Door Repair Kit | ×1 | ×1 | ×1 |
 All-Purpose Strengthener | ×1 | ×2 | ×1 |
 Fine Sheet Metal | ×1 | ×1 | ×2 |
 Beef Noodles | ×1 | ×1 | - |
 Electronic Components | - | ×1 | ×2 |
 Entertaining Magazine | - | ×1 | ×1 |
 Window Repair Kit | - | - | ×1 |
 Instant Rice | - | - | ×1 |