Young Justice Legacy

There are 12 Alternate Costumes in total meaning you only need 6 for this to unlock. The times in parenthesis next to the costume indicates where in the video it can be found if you prefer a visual guide. The first six costumes are as follows:

GREECE

MISSION 01 / ARRIVAL / DIG SITE
Artemis Alternate Costume – (0m24) - After the cutscene with the GPS device Red Tornado located, walk halfway up the scaffolding/walkways you came from and jump across the boxes to the costume.

MISSION 02 / A HOSTAGE CRISIS / MUSEUM
Kid Flash Alternate costume – (2m06) - Following the main path in the museum, it’s at the bottom of the second set of stairs you come to on the right on a bench.

MISSION 03 / EMERGENCY EXIT / MUSEUM CORRIDOR
Rocket Alternate Costume – (2m19) - There are three vertical passageways on the map. Once in the middle one right before the turn left, run to the end of the hallway outside of Green Lantern’s protective barrier to pick up the costume on a box.

SIBERIA

MISSION 05 / DEEP BURIED IN ICE / MOUNTAIN TUNNELS
Miss Martian Alternate Costume – (2m50) – Once you get to the three circular pads that spawn the ships, walk straight past them to the ‘dead end’ and break the ice wall. At the end of this path is the costume on a box.

MISSION 06 / GO WITH THE FLOW / FLOODING TUNNELS
Superboy Alternate Costume – (3m56) – In the third room on some boxes on the left.

SANTA PRISCA

MISSION 07 / JUNGLE RENDEZVOUS / SANTA PRISCA’S JUNGLE
Beast Boy Alternate Costume – (0m20) – After opening the door by moving the dragon statue, look to the right and destroy the wall. At the end behind some boxes is the alternate costume.


Below are the video guides credit to Redemption Gaming

Edit: Had to re-add videos and change time stamps