So now I finally beat the game. Overall I liked it and enjoyed most of this ROMhack, but funny enough I actually preferred your unfinished Colosseum hack compared to this one, and it really has to do with the late game portion. In ways, unless the game is extremely tedious, I like to 100% my games or get as close as possible to doing so. The shadow pokemon, there is a very nice and diverse selection but with them hitting ever increasingly harder, the game puts you in a form of a metaphorical corner with the high levels of the shadow pokemon and the high base power of the shadow pokemons moves. When trying to capture them the first go around, unless you are extremely overleveled or have a good amount of your team as shadow pokemon, they will most likely beat you down before you can even capture them. It doesn't help that towards the end of the game, you are capturing legendary after legendary who have very low capture rates, sometimes even multiple legendaries in one battle which means you need to stock up on healing items, which is hard because there is no quick way of actually obtaining lots of money in a short time frame, even with the usage of the amulet coin. So in the end, with the sheer number of legendaries, it can get pretty tedious. This wasn't such a big deal in your unfinished Colosseum hack because every trainer with a shadow pokemon only had one shadow pokemon max, where after OBNS, most trainers will have two and most bosses will have 3 or 4 shadow pokemon so in a completionists eyes, it can be detrimental to ones enjoyment of the game.
Overall, something needs to be done about the legendaries, whether it's revamping their shadow movesets, increasing their capture rate or even just lessening the amount of shadow pokemon one needs to capture in future updates or whatever. In the Vanilla, one could easily playthrough the game with whoever pokemon they desired, but in the ROMhack, you're in ways forced to use specific pokemon or roll around with 2-4 shadows in your team due to the massive power creep as the game goes on, at least for people who want to capture all the shadows. My complains don't really apply for the people who just want their team of six and then KO all over shadow pokemon. I still liked the game and still enjoyed it, but unless this ROMhack sees massive changes in later updates, it's a ROMhack I can't see myself replaying in the future, unlike Masoleum in which I plan on going back to within 2 years timeframe. Maybe I was expecting too much from this. I understand this is the only one of it's kind and it's very impressive you were even able to accomplish this as if it wasn't for you, we'd never would have had a ROMhack of the gamecube games in the first place so I applaud you for that.
But, uh, thank you, anyway for what you did.