Super mario all stars + super mario world question

How to get alternate levels with out cheats.

Playing in Retroarch Steam with cheats on. Turned on mega jump which caused the level transition to loop. During the looping i noticed that the back ground changed on the pipe warp screen. So i turned off the cheat and let it transition normally. I got the regular level. So i did it again and got an alternate world of 1-2 and other underground levels.

So how do you activate the alternate version of world 1-2 and other underground levels with out cheats? I don’t mean the a, b, c and d levels.