I have to emphasise that i enjoyed the game and i think it’s a great unique artistic moment in video games history BUT i was trying to put myself in the headspace of someone who is trying to play this for the first time in 1986 without modern savestates or rewind feature. it’s a great game today but a bad game in 1986. i think the reviews online of saying it is a bad game are completely correct when judging it by the standards of the time

in the here and now it’s a great game in terms of watching Mario being trick into dying in many different ways and laughing at the creative way they trick you because it doesn’t really matter if you die.

regarding the devil’s game. i am referring to AVGN review of Mario Bros 3 where he called it the devil’s game and did a skit with satanic imagery. this would have been more appropriate

regarding the jump it is
D-4 during the overworld section. there is an almost leap of faith jump (ie jump and hope you land somewhere safe off screen) and you land on a green pipe with a piranha plant coming out. although funny enoufh i look at a youtube playthrough and just see the person did a running jump and landed without being hit by a piranha plant. i swear i repeatedly landed on a piranha plant with multiple attempts. perhaps the piranha plant goes up and down off screen and it’s just luck whether you land on the pipe safely and the youtuber just knew the timing. the only way to gurantee is safety is manipulating the camera so it’s no longer a leap of faith jump. however the game structure that you MUST do multiple leap of faith jumps to progress throughout the game and it seemed on the surface another one of doing a running jump and hope you land somewhere safe offscreen