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