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