I find it pretty interesting that in Super Monkey Ball titles including: 1, 2, Deluxe, Banana Blitz (Wii version only), and Step & Roll: Multiplayer Modes allow up to 4 players to choose the same character with each of 'em having a palette-swap matching their port-color!
SMB1, SMB2, and SMBDX always uses each character's default color-scheme on a Red ball (or Green in certain cases with single-player mode) even if they don't look red, (hence their similar colors such as COM5 Baby and COM6 MeeMee in SMB2 & Deluxe uses a different tone or hue of their clothings,)
...while Banana Blitz and Step & Roll automatically turns AiAi's shirt redder than orange.
Likewise Baby's diaper is red afterwards, but surprisingly MeeMee's default-skirt is always red rather than pink now.
Honestly, I feel underwhelmed that GonGon's G on his shirt is always white.
I have mixed opinions about adding more unique characters to SMB since I don't mind just the four we already have, YanYan's not a real monkey, I jokingly nitpick about Jam's name not being JamJam, and Jet feels too oddly different to be part of their monkey's main tribe. No getting me started on Doctor and the entire SMBA cast, though.
This is just a situation regarding how much i'd love having to repeat who in a 24-player Monkey Race (be it 4, 6, or 8 different characters, for a repetition of 6, 4, and 3, respectively).
Now that I got those disclaimers out of the way, I can finally discuss colors regarding players 5-8 or higher: Unlike Players 1, 2 ,3, & 4, the color-codes of COMs 5, 6, 7, & 8 has been pretty inconsistent from style to style in the SMB franchise, those official versions including:
Classic Monkey Ball era: Cyan, Magenta, Black, and White. (for a bonus, 9 and 10 would be Purple and Lime, realized this thanks to a comment I read in Monkey Race 2's article)
SMB Adventure: Orange, Cyan, White, and Purple (although no 2+ players can choose the same character, monkeys don't change colors at all in SMBA, and strangely, all their balls are cosmetically red, despite their UI's displaying unique colors).
Banana Blitz style: Cyan, Purple, Orange, and Pink.
For the sake of not making this message longer than it has any right to be, i'll conclude it with 2 & half more important things to mention!
Firstly, i'd love for multiple Party Games in Super Money Ball to allow 8 players rather than just Moneky Race limiting them to 4.
Secondly, I hope it's possible to come up with unique voice-clips & animations emanating from what place they got (with more than 4 sets of positions).
Lastly, a modification of MKWii had inspired me to imagine having 24 players in Monkey Race only! In here, i'd make the podium-scene have 8 X-axis spaces in 3 Z-axis spaces, and i'll finally conclude this thread's description with the only part that sounds really fun in my opinion, being what colors would I choose for 24 players in Monkey Race if I were to work at Sega?
Well to be clear, their character's recolors will be as faithful to SMB2's pattern as possible, and with that out of the way, the colors would be:
Orange (AiAi's shirt will be more Amber than middle-orange, but definitely not Yellow enough, Same thing applies with YanYan)
Cyan (like SMB2, Baby's diaper is more tinted to distinguish it from default Baby, even if distinction is hard)
Magenta (MeeMee's skirt now looks more red)
Black (unlike SMB2, this color's UI is a much darker grey/gray to distinguish it from the new, actual grey/gray ball/monkey)
White (if Baby's fur still changed color over his diaper, White Baby's fur would be a very-pale grey/gray to distinguish from Baby's default fur. Same thing would apply to Doctor's clothes)
Brown (some brown clothes may need a bit of alternate shading to avoid blending-in with AiAi and GonGon's brown fur, and MeeMee's tan fur).
Pink (MeeMee's skirt looks more magenta)
Turquoise (means dark-cyan)
Maroon (Baby's diaper is red)
Ice (it means a tint of blue, but without making it cyan)
Lavender (means light-purple)
Coral (alternative orange)
Mint (tinted lime)
Cream (tinted yellow)
Navy (means dark-blue)
Teal (means cyan, but even darker than Turquoise)
The reason I shared all this is because I was too bored of it staying on me, so I needed to get it out of my chest since apart from the excessively long grammar (that I hope I can improve from by cutting it more shorter next time), nothing was too inappropriate about describing it to this new thread regarding Monkey Ball. Again, I apologize if my grammar seems weird, it's just a disability that happens to me when I feel rushed because I don't want to lose too much time in my computer by writing something online that actually requires a medium amount of details to define it well enough, not that many details nor just a few either. I hope everyone understands why my grammar is kinda strange, so hopefully that settles it all for now <:/ And if y'all do appreciate my self-explanation, well then there's still an easy time for us to focus on this thread's in-universe topic (^u^)