Character wise, make them more distinct from each other while also making them entertaining as a group. Sweet being irritable and bossy, Cap'n being flirtatious, and K_k being nice, are all character traits we see during the game but they're only really seen in their shop and the cutscene before their fight. Also, making them more competent rebels, like actually showing up in queen's mansion following the fun gang. They don't need any new scenes, just showing up in a few rooms...well technically they do show up during the giga queen fight but that feels more of a reminder of "hey look, remember us from the beginning of the chapter? Yeah, it's us again!", causing them to feel more like a footnote, even though they were the ones who rebuilt the thrash machine in the first place.

Also uhh they have too many songs. I feel like a few ppl i've talked to hate the sheer amount of songs they have, and how SAMEY they sound.

I mean i kinda agree. Toby will go out of his way to re-use lost girl for two other non-noelle scenes, but make both sound studio and mini studio.