"This bouncy little number launches a small Troop out of battle! Big Troops with higher Housing Space are pushed back and damaged."
| Level | Damage | Damage vs heroes | Cost | Build time | Experience gained | Builder hall level required |
|---|---|---|---|---|---|---|
| 1 | 100 | 50 | 10,000 | N/A | N/A | 3 |
| 2 | 175 | 87.5 | 30,000 | 1h | 60 | 4 |
| 3 | 250 | 125 | 100,000 | 1d | 293 | 6 |
| 4 | 325 | 162.5 | 300,000 | 2d | 415 | 8 |
| 5 | 400 | 200 | 500,000 | 3d | 509 | 10 |
Tapping this icon displays information about the Spring Trap, such as Level, Damage Type and Targets.
Tapping this icon begins upgrading the Spring Trap to the next level, if you have enough resources and a freeMaster BuilderorO.T.T.O. When the Spring Trap is at maximum level, this icon is not shown.
Tapping this icon instantly upgrades the Spring Trap to the next level, at the cost of oneHammer of Buildingif you have one. When the Spring Trap is at maximum level, or theBuilder Hallrequirements for the next level are not met, this icon is not shown.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number ofGems.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of oneBook of Building. This icon is only shown if you have at least one Book of Building.
Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of oneBook of Everything. This icon is only shown if you have at least one Book of Everything but do not have a Book of Building.
Tapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.