Here is the full list of all 10 OctaFight achievements.
Start a party with all game rules in Full Random
Start a party with 8 players
Save a replay's GIF
Start a party in Team mode
Succeed a PerfectShield three times in a row
Visit the shop, and buy something
Succeed a revenge match
Taunt just before the end of a round
Play 100 matches
Win a round without killing anybody