Final Boss (Phase 3) - Cory in the House

"Final Boss (Phase 3) - Cory in the House" is a high quality rip of "Final Boss (Phase 3)" from Cory in the House.

Jokes
The rip features Nick Oleksiak introducing it as being ripped from the climax of Cory in the House, then performing a fictional scene from the show with A Battle of Grand Proportions in the background.

There is no song named "Final Boss (Phase 3)" in the soundtrack of Cory in the House.

Transcript
Nick Oleksiak: Hello. The following audio is ripped straight from the stunning climax of Studio Gainax's magnum opus, a pivotal work in Eastern animation... Cory in the House. Cory Baxter will be played by the voice of Yuri Lowenthal. Now sit back, relax and enjoy.

Cory Baxter: Grand Dad! I've been waiting for you! Triple-Q... BotanicSage... Nozomi Tojo... Loud Nigra... They're here cheering me on! That's it! I feel the memes flowing through me! One more strike, and all violations, all bans from YouTube, will be gone forever! Alright, here I go! high quality rip power, 9001! A...Q...A...P!

Trivia

 * Oddly enough, the video description uses the Reboot-era phrases "Composed by" and "Available on", despite being uploaded in August of 2016.