Full list of all 35 Fenix Furia achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox One.
Died 2000 times
Died 1000 times
Unlocked Fanix!
Died 100 times in one level
Collected all cookies from Crystal Caves
Collected all cookies from Red Forest
Got behind Buer
Died 100 times
Unlocked the first Fenix's Box level
Died 10 times.
Fell off the map
Collect all cookies from The Moorsky
Collect all cookies from Birdbone Islands
Collect all cookies from Red Dawn
Collect all cookies from Crystal Plague
Collect all cookies from Hallowed Moor
Collect all cookies from Plague's Nest
Collect all cookies from Sanctuary
Collect all cookies from Fenix's Box
Collect all Golden Stars from Red Forest
Collect all Golden Stars from Crystal Caves
Collect all Golden Stars from The Moorsky
Collect all Golden Stars from Birdbone Islands
Collect all Golden Stars from Red Dawn
Collect all Golden Stars from Crystal Plague
Collect all Golden Stars from Hallowed Moor
Collect all Golden Stars from Plague's Nest
Collect all Golden Stars from Sanctuary
Defeat all time records
Collect all Red Stars on Challenge Mode
Collect all Blue Stars on God Mode
Die 5000 times
Die 10000 times
Find all the Red Cubes
Defeat Lilith using Fanix