Here is the full list of all 17 Super Head Ball achievements.
Play your first match
Spawn a golden head
Play a match on every stage
Block a flying head with your body while invincible
Play 100 matches
Play 1000 matches
Reach 2000 kills
Incinerate 500 heads
Use the head as a weapon 1000 times
Get immolated 500 times
Teleport 500 times
Throw 500 heads through teleporters
Throw 200 guns through teleporters
Jump into the fire while carrying the head 100 times
Stomp on 1000 frogs
Get the Death From Above stat to 1979
Score 100 own goals