Here is the full list of all 34 Burnit Quest achievements.
Finished the first level
Burn 1000 calories in total
Lit all Fire Altars
Get all health upgrades and heart talismans
Defeat Schulumern
Defeat Boborog
Defeat Pospectre
Master all skills
Play the co-op or versus mode
Have more than 200 sun bubbles at a time
Defeat Somno and save the island!
Run for at least 30 minutes in Endless Mode
Finish a stage while still holding a key
Get all hidden trophies!
Beat the first stage without defeating the spor
Take down three gullets with only one slingshot attack
Get to the gates before Raul!
Ligh up all torches during your race with Mello!
Hook five fish at the same time
Defeat Nokoset
Defeat Tupplur
Defeat Torkut
Defeat Insonya
Do a total of 1000 punches
Do a total of 1000 jumping jacks
Do a total of 1000 squats
Take a total of 10000 steps
Do a total of 1000 sit ups
Get your first skill
Do a total of 4000 sit ups
Do a total of 4000 jumping jacks
Take a total of 100000 steps
Do a total of 4000 punches
Do a total of 4000 squats