Can't help with this, but did you already beat SMB? If so, any thoughts?
I did. It was pretty weird to finally beat (without using warp zones) the first game that I ever remember seriously playing as a kid.
SMB1 is no SMB3. The controls are clunky, it can be incredibly cheap, and it gets a bit repetitive. The Bowser fights toward the end are particularly amusing, as you basically just need to eat a hit and then sprint past him to the axe in order to win. But it's still a damn good platformer overall, and it's kind of impossible for me to rate it irrespective of the context of its era. 8.5/10.
Which version did you play?
All-Stars ---
"Seph's kind of right."~ Jakyl25 "Sephy's point is right."~ Inviso