Shovel Knight has appeared in several other games and media as a testament to his popularity. So far only Shovel Knight and Plague Knight are the only ones from the Shovel Knight universe to have appeared in other works.
Shovel Knight makes a playable appearance in the Wii U game Runbow. He is unlocked by performing a butt pound ten times. His method of being unlocked is likely a reference to the Shovel Drop being an attack that hits enemies from above. Alternatively it could be a reference to Shovel Knight's Butt Mode.
However on June 11, 2015, it was confirmed that Shovel Armor will be appearing in Bloodstained. What his role in the game will be is currently unknown.
On February 10, 2015 Imagos Softworks announced that Shovel Knight would be a playable crossover character in their upcoming game Starr Mazer.
Shovel Knight has been announced to appear in Pixel Noir in some fashion.
Shovel Knight appears in Azure Striker Gunvolt 2 as secret boss character. He can be fought by scanning the Shovel Knight amiibo into the game.
Dino-Run DX Edit
Shovel Knight is set to appear as a Dinosaur in this Indie runner game.
Shovel Knight has been announced to be making a cameo in Yooka-Laylee as an NPC.
On July 9, 2016, Steven McCarthy announced that Shovel Knight would be appearing in his indie game, Ghost Police. Shovel Knight will be an NPC/boss in the main story, but will also be playable in his own separate campaign that features a completely different gameplay style. Steven mentioned that he would be working with Yacht Club Games to keep the gameplay "faithful and fresh at the same time" and noted that those who have played the Bangai-O series would note the similar gameplay style, albeit with some differences in execution.
Shovel Knight has been announced to join the cast of Indivisible as a guest character.