Full list of all 22 Battlemon achievements.
The base game contains 3 achievements, and there are 2 DLC packs containing 19 achievements.
Defeat Funse
Defeat Hard Mode Funse
Defeat Cubeland (raid) using Abble
Defeat Funse using Dunse in 1st phase
Defeat Snowthorn
Unlock the secret character
Defeat Snwothorn using split (1st phase only)
Defeat Cubeland (Raid) using Pelage
Defeat Funse (Hard) as Blink
Lose to Funse (Hard) as Blink
Take Funse's Deal in Dungeons
Clear dungeons Gamemode
Clear Dungeons as Cubeland
Clear dungeons with an A rank
Defeat Bald Eagle