According to a well known Nintendo insider, Super Mario. Bros. Wonder on Nintendo Switch is “hard” and “absolutely decimating testers.” The report comes the way of Zippo, who notes that “if you think this game is going to be a walk in the park, then you’re in for a rude awakening.”
This makes me less excited for it.
When I was a kid, part of the joy of platformers WAS their difficulty, especially SMB2 (my favorite). But now I’m older and stressed, man. I just wanna play happy fun Mario times and not feel growing rage at how I can’t get past the Bob-omb in level 5-2.
Given Nintendo’s history, there will almost surely be assist options or other ways to make the game more accessible. Nintendo tries to cast a wide net, especially with Mario games.