Some HGSS beta stuff:
Early Silver
Lyra
Ethan
Early trainer cards
Early touch screen controls
Your mother still wasn't redesigned
Going thru the front door crashes your game btw
HGSS were build off Diamond version, how do we know this? Well, that game has Lugia in the intro screen. Diamond version? Well...
BTW at that point in time, this was still a Diamond/Pearl romhack, so most of that game's content is still there. Good example would be Jubilife City, shown off in an earlier video. Earliest versions available still have Dawn/Lucas as protagonists.
PokeGear themes look rough at this point in development, it seems Lyra's default was developed later as she still uses Ethan's at this point in time.
Speaking of which, since she's here this early on, I guess this deboonks the theory that Krys was originally going to be in the game. That said, why are Krys' assets still in the final game, then?