Trifox
46 Achievements
1000 XP
Epic
What is this?
Find your first gem.
15 XP
73.0%
How to unlock the What is this? achievement in Trifox - Definitive Guide
DementedSquire7
TrueAchievements
TrueAchievements
The first, and most obvious, one I came across is on 1-1: Shore Island.
After proceeding over the beach, killing the crabs, and continuing up the path. You will then fight a Ninja type enemy. Dispose of him, and you will have to traverse some tall rocks.
On one of these rocks you will see a chest with a blue glowing button/lock. Double Jump (
+) (and Dash/Blink/Helicopter 
if needed) to land on this rock from the first one. Then open the chest with 
to find your first gem and gain this achievement.
After proceeding over the beach, killing the crabs, and continuing up the path. You will then fight a Ninja type enemy. Dispose of him, and you will have to traverse some tall rocks.
On one of these rocks you will see a chest with a blue glowing button/lock. Double Jump (
+) (and Dash/Blink/Helicopter if needed) to land on this rock from the first one. Then open the chest with to find your first gem and gain this achievement.