As for cheats, Shovel Knight: Dig does offer some cheat codes that can be entered on the title screen to unlock special features or modify gameplay. Here are a few:
This secret secondary weapon is required for the True Ending. You must find the owl Altius in a hidden room (marked by a blue lantern), buy a secret cog from Chester for 1,500 gems, and complete a series of sacrifices at statues in the second biome. shovel knight dig cheats
After obtaining the Omega Driver, you must reach the Drill Knight fight and use the weapon on the Omega Saw when it opens. This unlocks the final "Crystal Core" level. As for cheats, Shovel Knight: Dig does offer