Here is the full list of all 14 Snakeybus achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Get 420 segments.
Unlocked Dragon bus.
Unlocked Endless map.
Unlocked Coriolis map.
Found Paris Night map.
Unlocked Party bus.
Unlocked Miami map.
Unlocked Clustertruck.
Unlocked Ring map.
Unlocked School bus.
Get 300 segments.
Get 150 segments.
See you at the top.
Completed first game.