While players in Big Walk typically customize their characters at the paint studio located near the game's starting area, there is a second, secret location required for those hunting specific completionist rewards. Finding this hidden studio is the only way to access special color options and unlock the Big Makeover achievement or trophy.
Do You Need to Get Shiny?
If your goal is simply to reach the game's credits, you do not need to worry about this extra step. It is possible to unlock the true 100% ending of Big Walk without ever visiting the secret paint studio or obtaining the "shiny" status.
Because this process is strictly optional, players should prioritize it only if they are specifically aiming for the Big Makeover trophy or looking to expand their character customization options beyond the standard palette.