Here is the full list of all 30 Teenage Mutant Ninja Turtles: Out of the Shadows achievements worth 400 gamerscore.
Complete Chapter 2.
Max out Raph's special weapon rank.
Unlock Classic Mode.
KO 100 enemies with Mikey.
KO 100 enemies with Leo.
Perform a stealth KO 25 times.
Complete Chapter 1.
Achieve Level 3 with Leonardo’s Blade Staff.
Shoulder run off 100 enemies while playing as Leonardo.
Knock out 100 enemies while playing as Donatello.
Achieve Level 3 with Donatello’s Gravity Gauntlet.
Hit 25 enemies with Donatello’s special pose attacks.
Achieve Level 3 with Michelangelo’s Kusarigama.
Taunt 100 enemies with Michelangelo’s special taunt.
Knock out 100 enemies while playing as Raphael.
Use Raphael’s Counter Submissions 25 times.
Knock out 25 enemies with special attacks.
Perform a double counter 25 times.
Perform a special counter 25 times.
Perform a team attack 50 times.
Use a Turtle Power Knock Out on 100 enemies.
Perform a Shell Shock attack 100 times.
Perform a 4-Turtle Turtle Power Knock Out.
Perform a 99-hit combo.
Perform 12 attack variations in a single combo.
Complete all Challenge levels.
Complete round 20 in Survival mode.
Complete all Arcade levels.
Complete Chapter Three of the story campaign.
Complete Chapter Four of the story campaign.