This is mostly an experiment, seeing how well it'd work. So I started with something simple.
Donkey Kong Country 2 All warps (with alts)
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Pirate Panic: Simple. Run up to the first set up barrels with the Klomp on it. Jump and throw your partner straight up while standing on the first barrel.
Mainbrace Mayhem: The barrel is right underneath the pole in the background where you spawn. It's faster to just roll jump to it. However, you can also glide with Dixie, either from the spot you are standing are, or from the ropes on the other side next to the bonus barrel.
Gangplank Galley: Simple. Jump on the huge stacks of barrels right behind you when you first spawn. On the 2nd to the last one (before the bonus barrel) jump, and toss your partner straight up.
Lockjaw's Locker: The fastest way is jumping and throwing the Kong up blind. You have to stand on the edge of that wooden part in front of the metal barrels, it's easier to just fall through that secret spot in the beginning, it'll place you perfectly. Jump, and throw the Kong diagonal up to the right. You can just go further into the level, until the water rises, then just swim up to it. (it's the hole on the left, the deeper one)
Topsail Trouble: It's right underneath you when you spawn (lined up with the background pole). Roll jumping is the fastest, but you may also fly with Dixie.
Hot-head Hop: From the point you start, toss a Kong up there to get up. Move as close as you can to the left, jump as high as you can, and throw the Kong up.
Kannon's Klaim: Continue on with the level until you get to the part with the 2 Neeks and the Kruncha. Kill them off. The barrel is where the background black bucket is, under the Kruncha. Roll jump to it. You can also fly with Dixie.
Lava Lagoon: (The video jumped here, sorry) Go to the little island box with the Klap-Trap. Kill it, move to the right edge, jump, and throw a Kong straight up.
Red-hot Ride: Go on until you get to the balloon with 2 shoots of steam rising up with the K in-between (after the 1st Kruncha). Get to the 2nd steam shoot, jump, and throw the Kong straight up.
Squawk's Shaft: The barrel is straight a head, next to the bonus coin (it's where the yellow crystal is in the background). Roll jump to reach this, you should jump when you get the bonus coin. Dixie can also just fly over there.
These are the only warps in the game. Whether you caught on or not, they are in every single level (aside from bosses) in the first 2 worlds. The GBA version's warps are a little different, but that's for another day.
I used I Wish I had an Angel by Nightwish and Ladies and Gentlemen by Salvia.