The traveler bosses that Shovel Knight encounters were created by backers who had donated $1,000 or more to the game's Kickstarter. The traveler bosses were created by the following pledgers:
• Reize by Danny D. Henderson
• Mr. Hat by Alexander Hatzikides
• Baz by Matt and Woolie
• Phantom Striker by Steven Ness

The enemy Liquid Samurai was created by Max VanDuyne.