Warp 10 levels ahead[:] Select the level you want to go to and hold A, then press START
If I select the level and hold/press A, the game starts immediately. A is an alias for START on that screen. I've tried numerous times to hold A and press START, and many other variations of that. Nothing works. It always starts the game at level 9 (the selected level).
I'm trying it on the original game on an original Game Boy.
This is not the first time I read about some cheat code which appears to be just made up. They just don't work.
If it's the case that they only work on "certain versions" of a game, such as on PAL but not NTSC, what could possibly explain that? Why would they have such differences to the "game logic", unrelated to displaying the game properly for each region?
What's with all those fake cheat codes/"tricks"/Easter eggs?