In the US, Nintendo Power magazine had a monthly comic called Howard & Nester. It was, with one exception, totally kid-friendly. Cotton candy and rainbows.
In Germany, however, they had their own comics, and two issues of the magazine went a little crazy. Like, Satan crazy.
The comic in particular - called Die Nacht des Grauens (The Night of Horror) - begins with Mario and Peach trying to get down to business.
They're interrupted by a lightning strike, which leads to Mario witnessing Wario making a deal with Satan.
Not a child-friendly approximation of the character. The real deal. There are pentagrams and everything.
Jason from Friday The 13th and Chuckie from Child's Play were also there, just in case it wasn't creepy enough.
Wario asks for a horde of demons to fight Mario, Satan agrees, Mario and friends fight the demons and win. What should have been the end, though, is not.
Mario heads back to Peach's apartment to resume getting down to business to find...his love an eyeless, soulless monster.
A follow-up issue, released the next year, should have cheered things up, but instead features Mario travelling to Hell to rescue Peach's soul, only to be told by the Princess - above -that his "mother scrubs toilets in hell".
Don't ever change, Germany.
You can download the entire two comics here, if you feel like inviting the complete horror upon yourself.
Which you should. It's full of insane little details and references, not to mention several amazing images of Mario dressed in an outfit that's part-Van Helsing, part-sex dungeon veteran.