What a Twist!!

So just who is this mystery Trooper really? We're about to find out.

Lanky: *to himself* I don't get it. Why would one of my enemies help me find that last Kong?
Mystery Trooper: Oh, *positions her hand towards her hair* that's easy. *rips off the "hair", revealing a blonde corkscrew ponytail underneath*
Everyone else: Trixie!?
Trixie: Why so shocked? Did the eye color not tip you off? It was SO obviously me in that disguise. *takes off her overalls*
Diddy: *blushes*
Tiny: Wh... How... Why... My other sister... Hahh... *faints*
Trixie: *takes off her shirt* *notices Diddy's red face and wide eyes* And if Diddy would stop staring at me so pervertedly, then maybe I'd find the time to get my clothes and hat.
Diddy: *covers his eyes* sorry...
Trixie: *hides behind the nearby column* *comes out fully clothed*
Hop-C: Wow. Trixie, you sure dress fast.
Trixie: Thanks. It's only natural that I'd have a penchant for disguising myself.
Lanky: How did you manage to do all that?
Trixie: It's simple. I had been kidnapped by those lousy troopers and put here, but I was lucky enough to grab myself a scarlet wig before it happened. I was also lucky enough to spot myself another trooper who'd walked through the gateway portal and steal her clothes while she wasn't looking!
Chunky: ...........What.
Trixie: Now let's go look for that last Kong!

Wait. So the mystery Trooper wasn't even a Trooper at all, but a well-disguised Trixie?? Well, now, this is surprising!

Donkey Kong Country and Donkey Kong 64 - Mostly Classic Rareware with minor help from 
DTS -