Here is the full list of all 34 Minishoot' Adventures achievements.
Surrender your power and leave the world
Finish all stages of the arena
Finish each arena stage with at least 5 hearts left
Beat the true last boss
Wake up the tree thanks to the bard
Find all modules
Win the race against all spirits
Survive a fall from the 5th floor
Find all golden scarabs
In the forest, find the secret path in the secret path!
Free all your friends
Beat the final boss
Finish the game in Explorer mode (or higher)
Meet with the quasi-divine entity
Beat the beach boss
Reunite the family
Break all jars in the family house
Win a race against a spirit
Find the source of the corruption
Beat the desert boss
Beat the third boss
Find three golden scarabs
Wake up the giant turtle
Destroy 50 coconuts
Beat the second boss
Destroy 20 big non-boss enemies
Beat the first boss
Downgrade an upgrade
Find and use the Mini-gun
Fall into water
Finish the game in Original mode (or higher)
Finish the game in Advanced mode
Read all the lore from the ancient tablets
Listen closely to the bard for 15 seconds