The Codex Update introduced a way to personalize your robot, Weldon. Skins are no longer just for aesthetics; they serve as milestones for your progress.
There are dedicated Gauntlet leaderboards. Since this mode tracks your total time across the entire game, efficiency and route-planning are more important here than in individual level sprints. Pro-Tips for Gauntlet Runs: tinertia-codex-update-v2-0-gauntlet-mode-and-skins
It provides a bird's-eye view of which levels you've mastered, which skins you've unlocked, and your standing on the global leaderboards. The Codex Update introduced a way to personalize