No Export for You: Sad, but true; international fans will never see the original release of The Lord of Elemental, nor the Nintendo DS remake; even Revelation of Evil God includes more extensions to the remake. It's unlikely Pride of Justice will be seen anytime soon, if at all. Still, there is a Story Guide which allows players to know what's going on in Part 1 of The Lord of Elemental, as well as a patch which translates the menus, but that's about it.
Masaki with Heero, leading to this exchange in Alpha:
Masaki (Behind an unknown character portrait, imitating Heero): "So this is where it ends... But don't forget that your mission is still unfinished." Heero: "What are you trying to pull, Masaki?" Masaki: "Geh! Didn't see you there Heero... Well, then! Catch you guys later!"
In Original Generations, Kuro with Radha and Shiro with Mai. There are also save-quit dialogues between the two pairs.
By default, Xenia with Monica
Feilord with Raidiese. In the Second Original Generation, both characters have unique dialogue with one another, especially when they have a battle encounter against each other.
What Could Have Been: Xenia was supposed to pilot the Nols Ray in the Second Original Generation, complete with a Super Move Portrait Attack in the "Angel Whisper" attack. Although Xenia is cut due to time constraints, Monica takes her place, instead.