Alright, I found myself re watching Episode 75 so I'll give you a full on scene by scene. This'll take a while...
I'm glad you finally found a place in the series to put the Merlin and Nox prequel to the series. I know you've been talking about this batch of scenes for a while (History of Nox Decious, Merlin giving the Mario Bros their hats, etc.) I was just surprised by the amount you did. You had the fight of the mages (pun accidental), you named most of the Nether Emblems (The Ronfeir Dragon and The Ancient Cross), you included Nox's music, their role was established as a lineage of protectors that have roots in ancient history, Nox creating The Darkness, Baby Mario Bros, all of it! XD I just got this, I hope it was on purpose "What do you want to do now, Merlin?"
The music was phenomenal. Merlin makes a great Mentor for Mario and the two have really stemmed away from each other. Richie nearly seamlessly pulls off the split in personalities. Luigi and Wario are reunited and do some planning. "There is still one more loose end I must fix." Wait, you tie up loose ends. You fix problems. Wario squeaked one more fart in there. Or did he squeak one out?
The Pirate Crunch scene everyone saw coming a mile away but what can I say I found it funny. Captain Morgan eating the cereal makes me crack up. I also enjoyed the continuation of the joke with Waluigi. That was a Waluigi coma joke done right.
:O Waluigi's the returning character! He and Wario have this long and touching scene which does everything. It repairs continuity, it breaks the fourth wall, and it's their last big scene together. You even went on to retcon things I thought were long forgotten like Mario's excesive bleeding in Episode 44. Say what?" I wonder how many times this line has been said in the series, cause I know this is at least the 3rd time. It's a touching conversation about romances and then a big hug! "You're so welcome, my friend." aawww.... It is a 7 minute scene. That's longer than some episodes.
Pirates VS Ninjas. If season 1 had a large enough cast this would have been in there. This is a funny fight like Episode 5 or 15 and yet it's pivotal to the plot, in a way. The pulsing pirate music makes Wario and Ness' scene work... somehow. I suppose the offscreen battle has something to do with that. Same for Ness, Brock, and Gary. I feel like that bit would have annoyed me if the surrounding action wasn't there. And I love how this whole episode is like one big cereal commercial. XD at the one ninja with a lightsaber. Captain Morgan is hysterical, he should have split Zubashi's screen time in the rest of the season. "Wow, I'm impressed!" Me too.
Wario VS Decious. I did not see that coming, I don't think anyone did. Decious has some great close ups and they have some excellent banter. "Can I use credit?" Just Fight! BOOM! Well done.
Luigi and Bowser face off. I like the fact that their fight comes later but I feel some of the face off footage was excessive. XD for Wario and Snake in the same bed. Naomi and Mona look good together... in the same scene. Yeah.
Decious VS Darkness. Creator VS Creation. "I never had this much fun in my life!" The music is a bit... mismatch in the beginning but toward the end it fits perfectly. "You weren't running away, are you?" Oh nose the grammar popos! The fight choreography was fresh unlike Ep 44 act Act II Part 6. Those two fight rough! On the ground just tearing each other apart! Darkness looses his cool finally right before it's too late and Decious meets his equal. I had a feeling they would both kill the other but that doesn't make the fight any less satisfying. Also satisfying was Darkness' departure. He went from a great villain to a great character. I enjoyed his story.
Bowser VS Luigi was probably the weaker fight of the finale. I thought Bowser's fire should of had a better sound effect. But actually, this fight showed more than one character's power VS another's. Even though Luigi was weaker than Bowser he was more cunning and clever using Bowser's fire against him. I was hoping Bowser wouldn't be killed off, it just wouldn't be like Luigi and the Mshroom Kingdom needs some fishpoop threat.
Merlin sacrifices his spirit to Mario, a brave sacrifice. Darkness felt a little out of place in this scene especially considering he had such a satisfying death but hey, what the hey. and KEEEEENNNNNNTTTT! Glad you could have him even if it was so brief. But it all makes sense now, the prophecy of reincarnation and everything! Wow, that loose end was fixed. Triforce: Wisdom, Power, Courage aka Merlin, Darkness, and Link. Now that's good stuff.
Return to Pirates VS Ninjas. Down to just the named ones. It was at this point I realized how Sparrow like Morgan was. I honestly expected his Super Burning Hot Lava Rum Breath to work. Zubashi and Gangles' reaction to him drinking was funny.
I was not expecting the Mario costume change. And it was totally cool! As Waluigi would say, he is a "total bad ass". + Master Sword makes him one of the coolest costumes in the series! Ganon killing Merlin was an interesting development. It showed a different side of Merlin and Nox also after they were gone. Ganon felt a little out of character in that bit. He was never portrayed as a cruel merciless killer. Kinda... Palpatiney. Their sword fight was good, I was surprised especially since your earlier hesitance with using the master sword in action. The music had the right orchestral power to it unlike some of the other fights. "It won't be me who's dying tonight." Gsnon dies with all the class he can muster and Mario goes home.
Back inside, "Do I make stupid noises when I sleep too?" Then Snake and Naomi make out hardcore! Woot! The first actual kissing in the series! Mario and Luigi have a fantastic warm reunion. Also the first time those two hug I believe. Goodbye handshakes, hello brotherly love!
I was not expecting the cover at the end. I was expecting a bunch of scenes like at the end of the movie but this was much better. You expressed everyone going their separate ways without words which was poetic in itself. I lost it when DK married Pauline. I was glad I didn't see that coming. I expected to see Pauline again but on this level, so good. Ness goes off on his own, which actually I really like. Funny how it wasn't until the end that I realized how much I liked his character. Yoshi... eats apples. I think it would have been better to have something like I dunno, he goes to an orchard tree, takes an apple from it, eats it and hugs the tree. Waluigi leaves to find Walgina. He leaves Wario's life in the same manner that he came. So poetic. Wario and Mona walk off into the sunset.
Mario and Luigi now mustachioed share a few simple words and then Richie thanks his audience for giving him the best 5 years of his life. Then he and Chris walk off into the distance.
As I said before, it was a good end to the series. I always wanted to make a spinoff when the series ended but you didn't leave any loose ends that need to be fixed. Everyone went onto their next adventure, it would be unfair to bring them back together. The Avengers ending made me nod in approval, you would do that. It was a perfect ending to a great series. 10/10