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.

You have a limited number of "lives" or "retries." If you run out before finishing the final world, the run ends, and you must start from the very beginning [1]. tinertia-codex-update-v2-0-gauntlet-mode-and-skins

Gauntlet Mode is designed for players who have mastered the core mechanics and want to test their speed and consistency across the entire game. It provides a bird's-eye view of which levels

Most skins are tied to specific achievements, such as: Beating certain boss encounters. Completing the game on various difficulty settings. Earning "Par" times on levels. which skins you've unlocked

You can change your skin in the Main Menu or the Pause Menu under the "Customization" or "Codex" tab.