Neon Colosseum is actually garbanzo. You need to win 6 long-ass battles in a row with randomized Pokémon. It's probably easier to win millions of dollars in the lottery than to get a good team.
The longer I play this game the more performance issues have I encountered. It's very odd since according to the xbox app it should perform very well because of my pcs hardware, but it just doesn't.
I realized by watching a speedrun of the game that I basically completed the game yesterday but the ending was very vague and I didn't, therefore, realized that I really had completed it.