These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The reveal of some of the competitors in the Smash bros. Brawl tournament caused this reaction, like Diabetus, who was previously rumored to be a guest Guy.
The post-Mario Party 2 announcement that Jon Paula would be joining the Guys for Mario Power Tennis.
Many people wanted Kirbys Return To Dreamland to be a LP, and then on May 18, 2012, it was announced as one.
Anti-Climax Boss: The tournament finals, Jon vs. SyKhotic/Hunter, with Jon winning. The battle wasn't particularly exciting, and Hunter kept making bad jumps that cost himself the win.
Base Breaker: All three of the guys are this to some extent.
Chuggaa. He's either funny, or an obnoxious player who's robbing everyone of any victories.
Tim is this due to him being Out of Focus a lot, and for his poorer performance in Brawl.
Diabetus caused this kind of reaction when it was rumoured that he would be one of the Guys' special guests, despite it not being stated that he would actually be a guest, just that they were meeting up with him. Eventually, it was confirmed that he wouldn't be joining the group. And then it turns out he's in their Smash Bros. Brawl tournament.
Broken Base: One has sprouted up between Team Jon (and Josh) vs. Team Chuggaa. It's more lighthearted than some examples, since Jon trying to kill Chuggaa is Played for Laughs by both Jon and Chuggaa.
Ensemble Darkhorse: JoshJepson is this, and many were sad to see him gone after the second project. Jon even said that he'd want to work with him again in the future.
Fan Dumb: Three popular Let's Players playing a game where they're screwing each other over repeatedly. This was also to be expected.
Notably, the sheer amount of fans who actually thought Chuggaa quit The Runaway Guys at the end of Subspace Emissary Ep. 11.
When Diabetus beat Chugga in the Brawl tournament, Chugga's fans pretty much raged, saying how he deserved to win instead. The comment section later contained a lot of death threats for Diabetus.
See Anti-Climax Boss above. The fans were all whiny on how the whole thing turned out.
Jon often has the most number of lives during the run as the viewers know it. Think back to the original Kaizo LP and the following words in the final main episode:
Jon: I've got 37 lives, I'm set.
He finally reached 99 lives in Episode 11. He then reached and stayed at 99 for a long period in Episode 14.
Good Bad Bugs: In Episode 15, here, to be exact, Tim jumps on the flagpole, gets a 1-Up, then bubbles, and is suddenly not in the bubble. To add greatness, they got fireworks.
One of the beta names for the channel, Loud Players, turned out to be true. During LP #2's recording, the guys accidentally woke up a lady by being... well, too loud.
Starting at Episode 7 of Subspace Emmisary, they've been recording at Jon's house instead of a hotel like usual. Without having to worry about disturbing other people, they can be as loud as they want, and they take full advantage of this. Even Tim is yelling!
At one point in Mario Party, NCS takes a while before moving some text along, and Chuggaa says "Do you know how to press 'A'?" In New Super Mario Bros Wii, NCS seems to have a small bubbling issue, which requires pressing A.
Jon jokingly calls Jigglypuff "the deadliest of warriors" while Chugga fights Wolf in the Bonus Video. Jigglypuff ended up giving Tim a lot of trouble.
Interestingly enough, there are quite a few of these in NCS's solo run of MP2. For example:
Playing Hot Rope Jump and Tempting Fate by saying "Somebody die here!". Hilariously, the first character to get burnt is DK. On top of that, Mario was the winner of that round.
NCS: You guys stay over there. Don't trap me against the side, now. [He gets trapped and shot two seconds later]
Wario's AI being a complete doofus in 2 player games. Particularly in one Sky Pilots game.
NCS:[Talking to Wario] Dude, what are you doing? Go through the rings! Do you want me to lose?
He even won a Tile Driver half of a second before DK would have!
They bring up in their LP of the first Mario Party how, canonically, Wario is the Super Star. Later, in Mario Party 2, they play as Wario for Minigame Coaster, and at the end they are told that they "shall attain Super Stardom".
Chuggaa considers Wario's Battle Canyon to be this. Throughout the whole game, only two stars are purchased.
Peach's Birthday Cake is also described as one at the start.
NCS refers to World 2-4 in New Super Mario Bros Wii as "the worst [level] in the first five worlds." Indeed, the Runaway Guys collectively lose 22 lives in that level, not counting murders.
World 7 in NSMB Wii. Especially what happens in Episode 14.
Level 9-3, so, so much. It wins for the most times they've had to repeat a level.
In Subspace Emissary, The Swamp is this for Jon and Tim eventually. Jigglypuff being there — over two-thirds of the way through the level — didn't help.
Mystery Land in Mario Party 2 is designed to work the same as Wario's Battle Canyon, and Chuggaa expresses his disinterest right from the outset.
The Mario Party mini game, Sneak n' Snore.
Too Dumb to Live: Many of Tim's actions in the later parts of Subspace Emissary are... questionable. Granted, he got distracted easily, but even then, some of his deaths seem ridiculous.