Here is the full list of all 29 Hover Cubes: Arena achievements.
Jump 100 times.
Jump 10,000 times.
Jump 1,000,000 times.
Doublejump 100 times.
Doublejump 10,000 times.
Doublejump 1,000,000 times.
Run 42.195 km
Run 40,075 km
Run 299,792 km
Receive maximum points for 100 obstacles.
Receive maximum points for 1,000 obstacles.
Receive maximum points for 10,000 obstacles.
Receive minimum points for 5,000 obstacles.
Fall down the track 10,000 times.
Buff 100 team mates.
Neutralize a buff on an opponent.
Debuff 100 opponents.
Neutralize a debuff on team mates.
Win a medal on each map of the first cup.
Win a medal on each map of the second cup.
Win a medal on each map of the third cup.
Win a medal on each map of the fourth cup.
Win your first cup match against other players on any map.
Win a crystal score medal on any map.
Win a crystal time medal on any map.
Win a crystal score per time medal on any map.
Win an entire cup against other players.
Win every single map of an entire cup against other players.
Get reset 10,000 times by traps and other obstacles.