It counts the maximum number for the Regional Kanto Pokedex. Essessentially, we are changing any 96/97 value to their respective numbers. For examples, 60/61. Or in my case, I have F6/F7 (246/247). There are a lot more than three limiters, but those three are the more important ones, since they directly correlate to the Pokedex. There are other limiters which I will find soon (probably by searching through every single 96/97 hex value in the rom, lol) that displays the Regional Dex numbers on the Pokemon page (which I have not found yet). For instance, the Pokemon who are over 151 will now appear in the Kanto Dex as for instance 231. But on the Pokemon page, their number would be ???. There are also limiters for the seen and caught section of the Pokedex. It's simple hex edits, but the hard part is finding the limiters! =]