Ketsuban

Just to be absolutely certain: It's the Mega Stone that can't be traded? You've tried giving it to some other Pokémon instead of the Lati?

Black 2 and White 2 are now out in Japan, a lot of people are poking at the games in every possible way, but one thing interested me given that I'm a little tired of the lack of difficulty in Black and White - Challenge Mode! Challenge Mode gives gym leaders and the Elite Four new rosters and different movesets and generally adds a little bit of much-needed difficulty. (There's also an Assist Mode which makes the game easier, but come on, the game isn't easy enough already?!) Now, Gamefreak being Gamefreak they couldn't just add this and allow the users to rejoice, so it had to be tied to pointless timewasting and someone screaming the word FRIENDSHIP until they turned blue... so you can only access the difficulty setting (y'know, the thing which affects the difficulty of the WHOLE GAME) after you finish the game, which difficulty you can even access depends on which game you have (White 2 players get Assist Mode, Black 2 players get Challenge Mode) and you have to trade the key (via infrared, not local wireless or wi-fi) to allow someone else to unlock that feature of the game. So here's what I want to know - is it possible to edit the BW2 ROM into a distribution cart for Assist/Challenge Mode keys? I don't know anyone else who plays Pokémon (last I heard of my friend next door he'd gone to China for some reason or another) and I don't particularly want to play through the game in easy mode to send myself a Challenge Mode key so I can play through the game for real. I know there was a leaked distribution cart for the Victini event which accompanied the launch of BW, and that's the kind of thing I'm thinking of.