Here is the full list of all 37 Trino achievements.
Defeat chapter 3 boss
Set Trino free
First 5 triangle combo
defeat a triangle maker
defeat a triangle sucker
When total score hits 100,000
defeat a shelled enemy
Use the shadow triangle
Defeat chapter 2 boss
defeat a triangle breaker
When total score hits 50,000
defeat a multi-shelled enemy
Kill 10 enemies with one bomb
defeat a trino avoider
defeat a dart
Use the bomb once
Defeat chapter 1 boss
First 4 triangle combo
defeat a seeker
defeat a triangle dodger
First 3 triangle combo
First 2 triangle combo
defeat a point eater
When total score hits 10,000
Connect all CP in first level
Make one triangle
When total score hits 200,000
When total score hits 400,000
When total score hits 500,000
First 6 triangle combo
First 7 triangle combo
catch the sushi
Trap 6 enemies in a shadow triangle
Kill any boss on first try
Get through a chapter with one life