The redesigned female Shepard design made for Mass Effect 3 is the female default.Character creator for all three games based on the Mass Effect 3 creator, along with new customization options such as hair styles, hair colours and skin colours, many of which come from Mass Effect: Andromeda.A list of individual changes follows below: Modest gameplay and HUD updates have also been made. Various bugs have been fixed throughout the trilogy, including some which grant access to content that was originally cut. Another broad theme involves unifying the visual presentation of the characters and locations across the three games, in cases where there was divergence during the course of the Original Trilogy.

In addition to unifying all three games under a single launcher, Legendary Edition includes substantial visual updates, such as higher resolutions, more detailed models, and real-time reflections.