There are no infinite health or invincibility glitches currently active on the latest patches, but there are efficient farming strategies to "cheat" the grind for Gems and Cogs.
This is the closest thing to a "Moon Jump" or "God Mode" cheat currently in the game. shovel knight dig cheats
Unlike the original Shovel Knight: Treasure Trove , does not have traditional "cheat codes" (such as input strings like the famous "WSWWAE" from the first game). The developers, Yacht Club Games and Nitrome, designed the game with a "roguelike" structure, meaning progression is intended to come through gameplay loops and upgrades. There are no infinite health or invincibility glitches
If you are playing on PC (Steam), you have access to actual cheats via third-party tools, but this comes with risks. Yacht Club Games and Nitrome