Rocks give you more durability if you equip the punch tool and then punch them by clicking or tapping.
There are multiple rocks, each type only having one, with the durability requirements and location shown below.
| Name | Requirements (Durability) | Location |
|---|---|---|
| Tiny Rock | 0 | Tiny Island |
| Punching Rock | 10 | Beside the Tiny Island portal on the main island |
| Large Rock | 100 | Outside of Legend Beach on Main Island |
| Golden Rock | 5,000 | Legend Beach |
| Frozen Rock | 150,000 | Frost Gym (1 Rebirth) |
| Mythical Rock | 400,000 | Mythical Gym (5 Rebirths) |
| Eternal Rock | 750,000 | Eternal Gym (15 Rebirths) |
| Legends Rock | 1,000,000 | Legends Gym (30 Rebirths) |
| Muscle King Mountain | 5,000,000 | Muscle King Gym (5 Rebirths) |
Trivia
- They train durability faster than any other machine in the game.
