Here is the full list of all 14 FoxyLand achievements worth 1,000 gamerscore. It takes around 0.5-1 hour to unlock all of the achievements on Xbox One.
Complete 20 levels.
Complete 15 levels.
Defeat an eagle.
Complete 10 levels.
Defeat a opossum.
Complete 5 levels.
Collect 100 cherries.
Defeat a toad.
Buy an item on the shop.
Collect 50 cherries.
Complete a level with 3 starts.
Die on any level.
Get your 1st gem.
Get your 1st cherry.