@Joseph Raszagal  
You forgot to add, the only reason their level stages were accepted due to the fact they had a hidden door waaaay above the screen that leads straight towards the end stage.

Typical “Difficult” Mario Maker Level Designer: “Look how hard my level is! Every ? block releases enemies, there’s no power-ups whatsoever, there’s hidden blocks above every jump, every other jump is certain doom, and all of the platforming involves opposite-facing conveyor belts! I’M SO CLEVER!”
 
Way too many troll stages in this game for me to even attempt the 100 hardest challenge.
 
Even if you’re legitimately GREAT at the game, there’ll always be a troll stage to show up during your run that’ll depend entirely upon luck at first and then upon memorization of the bullshit traps later (you know, after they’ve gotten ya a jillion times).
 
And these assholes somehow still feel proud of themselves like their bullshit is legitimately difficult as opposed to being simply aggravating in how every single block (especially those that you can’t see) exists purely to destroy you. LEVEL DESIGN.

“FEED US!” “FEED US!” “GWAAAAAAAAAAAR!” “FEED ME, STUPID HORSE!” “BWAHAHAHA!” “WHERE THE PRINCESS AT?!”  
“Apple Bloom, are you sure keepin’ these lil’ Bowsers is a good idea?”  
“Yup!”

@InvaderSplooge  
@Ripple_Shine  
Word of advice for “Expert Mode”, skip ALL Japan levels. They lead nothing but to death at the beginning. You’ll be lucky to get a challenging level that isn’t so frustrating.

“Wowzers! We’ve got Bowsers!”

@Ripple_Shine  

 
I’ve learned never to take a single door unless I absolutely HAVE to!

@InvaderSplooge  
Not to mention doors that lead to death-traps.

Pretty much all you get when you do the expert 100 Mario challenge. That and a buckton of hammer bros, lakitu, and trap blocks full of boos!