Did you figure out 7-4's secret in SMB without the internet?

[Marioro]

As a kid I looked it up and that's how I found out what path to take. Years later I realized I just had to pay attention to the sounds when this puzzle appeared in other games.

EDIT: When making the question I assumed y'all first played the level as kids, but maybe some did as adults. Oh well.

 

[Hint Toad]

Do you mean NSMB? If you meant NSMB then yeah, had to use the internet. It was the last thing I needed to do to 100% the game.

Edit: I remember searching for the hidden exit in the under ground vertical level filled with pipes. It seemed like a good level to hide a hidden exit.

 

[Lavender Luma]

On my Raspberry Pi I recently played it. I don't remember hearing any sounds that helped but I did notice in the remake in All Stars that the game plays a little ding or bzzz sound when you get it correct or incorrect. I just kept going random paths until I beat the level.

 

[Lavender Luma]

Do you mean NSMB? If you meant NSMB then yeah, had to use the internet. It was the last thing I needed to do to 100% the game.

Edit: I remember searching for the hidden exit in the under ground vertical level filled with pipes. It seemed like a good level to hide a hidden exit.

For NSMBW (which I can't play anymore because the disc is so scratched it overheats and crashes after 2 levels), I looked up some secret exits, most except 6-6 in the cave.