Here is the full list of all 10 Air Forte achievements.
Complete Challenge with two or more players.
Complete any level with four players.
Collect 1000 bubbles.
Complete a practice session at the highest difficulty.
Collect 227 bubbles.
Complete the Adventure
Complete Challenge under 60 seconds.
Complete Infinite level 5.
Complete Infinite level 10.
Reach Infinite level 4 with four players.