Here is the full list of all 39 The Alto Collection achievements.
Score 10,000 points in one combo
Ride for 1,000,000m
Ride for 250,000m
Ride for 50,000m
Ride for 500,000m
Beat 10 goals
Beat all 180 goals
Beat 25 goals
Beat 75 goals
Grind the very top rope of the ship
Fly With Wingsuit in Odyssey
Dip underwater 50 times
Complete 180 goals
Ride for 5,000m total while chased by a lemur
Complete 25 goals
Unlock Felipe
Unlock Izel
Unlock Paz
Unlock Maya
Snowboard for 3 days
Unlock Tupa
Fly With Wingsuit
Complete 75 Goals
Proximity fly for 1,000m total
Complete 10 Goals
Wallride for 10,000m in total
Discover 3 biomes
Complete all 180 goals once without crashing more than 100 times
Unlock Sumara
Break 500 pots in total
Backflip from 100 tornados in total