
The ?? are what you want the modifier to be. If you clicked on them on the page you got the codes from it would've taken you to a page explaining it:I wanted to use this code: 01??28C8 for EXP Modifier (Large) in Mario Golf for the Game Boy Color. I don’t know what are the values for it to work.
The ?? are what you want the modifier to be. If you clicked on them on the page you got the codes from it would've taken you to a page explaining it:
https://codetwink.com/page-quantity.html
It's not the most intuitive site I will admit though.

No idea, I've not used the code. What I would recommend is making a save state right before you get experience, note down how much you get, then reload and try values with the code. Start with 01 and 02. See how much of a difference it makes and work your way up to the number you're aiming for. You can use Windows calculator to convert between decimal and hexidecimal too if it's something you're not used to, since the value in the code needs to be hex (0 to FF).How do I get 500 experience for example when using this code?