Here is the full list of all 32 Robot Fighting achievements.
Visit the group of the game in social networks
Win your first battle
Own 6 armor types
Own 12 weapon types
Get annihilated by the Judge
Break 10 boxes
Play 7 days in a row
Play as Clown and crush the Respirator
Crush 50 bots from the boxes with a saw
Destroy 100 boxes with an axe
Push your opponent into a fire trap
Set free 7 bots from the boxes in the same fight
With Boxer, win over all types of robots in the same league
Win the arena fight without dealing any damage to anybody
Play as Pterodactyl and crush Alien, or vice versa
Collect all types of weapons and armor
Crush 10 enemies by exploding the gas cylinders
Crush 50 enemies with the same robot type as yours
Play as Capitan and crush Jaws and Piranha
Win the fight without getting any damage
Trade some gold for silver
Let the bots from boxes crush an enemy
Use all kinds of emoji in the same fight
Crush 3 opponents in less than a minute
Win 10 times with Driller of drill-equipped Minibot
Defeat Megalomaniac, the 1st boss
Defeat Venom, the 2nd boss
Defeat Anansi, the 3rd boss
Defeat 99 Spikes, the 4th boss
Defeat Inquisitor, the 5th boss
Complete the Challenge Mode
Own 19 minibots