Here is the full list of all 29 Maya Star achievements.
The first item
Blowing things up.
Burn them up!!
Nobody catches me
The most expensive item
Item double jump
Ghost Hunter
Open all chests
Save all cats
hit 3 in a row
Hit 3 enemies on the head in a single jump
Soft water on hard stone...
Hit a headless mule 4 times while remaining in the air
Hit a Shield Knight 5 times while remaining in the air
Visit the village for the first time
Visit the graveyard for the first time
Visit the sewer for the first time
Visit the castle for the first time
All endings