It might not be allowed for Smileboom's rules, but I believe that legally, parodies fall under fair use. It's probably allowed.
Parody Games
Root / Talk About Programs / [.]
UltraPhoenix4Created:
Are we allowed to make parody games? Would that go against the copyright rules of Smilebasic?
Woot woot!
Smileboom allows it long as you do not use any of the source materials without permission.
Five Nights at Freddy's is allowed under the creator's permission and stipulation.
This Fallout 4 minigame is allowed because the guy who made it wrote codes from scratch, and did not call it Fallout.
Anything that has the word Mario in your program or a sprite that resembles Mario will be deleted due to copyright.
Thank you for clarifying.