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