Masks:
Masks are fun to wear, and sometimes are needed to solve a puzzle or to get a reward. Here is a list below of all of them:
| Green Hero Mask: | Buy from the Fossil Guild store. |
| Purple Hero Mask: | Unlock after defeating Chip (Kid in Fossil Stadium obsessed with Vivosaur Man) while wearing the Green Hero Mask. |
| Dinaurian Mask: | Unlock after beating the main story. |
| Oonga Oonga Mask: | Find Oonga Oonga with the snow-berries. |
| BB-boy Mask: | Beat Frigisaurus with Ingosaurus (while battling Captain Bullwort A.K.A. BB Boss) |
| Bb-girl Mask: | Same as BB-Boy Mask. |
| Mole Mask: | Find the Mole's brother in Rivet Ravine. |
| Stone Mask: | Find the Mole's brother again in Rivet Ravine while wearing the Mole Mask. |
| Master Mask: | Become a Master Fighter. |
| Digadig Mask: | Go to the Cheifton post-game, beat his hip shaker test. |
| Completist Mask: | Get All 100 vivosaurs. |
| Dropping Mask: | Bring Nick Nack 30 dropping fossils. |
| Officer Mask: | Catch Blambeau 3 times first in the Greenhorn Plains, then in Rivet Ravine, then in Mt.Lavaflow |
| Diving Mask: | Go to Bottomsup Bay for the first time. |
| Saur Mask: | Beat Saurhead to get inside the alien spaceship. |
