The Eagle Add-on for Killer Instinct has 14 achievements worth 150 gamerscore.
Defeat 6 different characters in online matches as Eagle
Win an exhibition match vs a friend as Eagle
Earn a supreme Victory in an online match as Eagle
Win a Ranked Match as Eagle
Hit your opponent with 10 Peck attacks while in Eagle's Instinct Mode.
Defeat 10 opponents in one Survival as Eagle
Reach 30 Fight Challenges with Eagle
Win a survival match as Eagle
Unlock a color for Eagle
Win a versus match as Eagle
Win 20 ranked matches with Eagle
Complete 200 matches as Eagle
Reach 150 Fight Challenges with Eagle
Reach 80 Fight Challenges with Eagle