Her blind Paper Mario LP has some noticeable moments:
In episode 34, she goes to fight Anti-Guy. She's freaking out about him, because despite keeping herself sequestered from spoilers, she knows he's tough and is terrified of him. She beats him without taking any damage.
A similar thing happens with Kent C. Koopa, another Optional Boss. She stumbles into the easy trick to beat him and once again crushes him into the dirt.
She beats Huff N. Puff, who many consider That One Boss due to his healing and ability to spawn Ruff Puffs, while drunk using Lakilester and Power Jump.
Getting double star points from the first Bowser fight in episode 67.
Managing to keep the Twist Ending of Journey (2012) secret throughout the LP (by warning that she would zealously defeat any attempts to post spoilers).
Her Audino Snuggltits manages to take down Ghetsis's Hydreigon despite being six levels lower and having a moveset without many strong attacks. While the battle was a defeat overall, its performance really stood out as a victory. Lucahjin even comments that no one can ever make fun of her or her Audino ever again because of how well it performed.
A couple from the finale of Paper Mario: The Thousand-Year Door: After sometimes having bad luck with bosses throughout the game, Lucah beats the Final Boss relatively easily, despite having a glitchy controller that means she can't do jump attacks properly. This is partly because, after a whole game's worth of never getting three of a kind in the bingo pop-ups, finally getting one at the best possible moment.note It looks like two, but the first one is a scripted event in the game that always happens.
In episode 26, she beats Phantom Ganon without taking any damage.
In episode 41 she easily beats Morpha after working out the trick to it, as well as going through the gauntlet to the boss door without much difficulty (much to guest commentator LiamSixx's annoyance).
For a blind run, Lucah does amazingly well on the Water Temple as a whole (well, except the Dark Link fight), even finding the two most well-hidden keys without any help from Liam.
In Super Paper Mario, she manages to finish the first Pit of 100 Trials (which she failed at in Thousand Year Door) and then quickly works out a trick with Luigi and Peach to curbstomp the boss of the area.
In WarioWare Inc. she's delighted to find 9-Volt's challenge consists of old Nintendo games she grew up with, and proceeds to beat all of them without trying, not losing a single hit point.
Her HeartGold blind LP also has noticeable moments of awesomeness:
Correctly guessing in part that Wooper is based on an axolotl.
In episode 16, Lucah reveals that she went through herculean effort to "fix" Jasper her Geodude after she inadvertently had gotten rid of Magnitude a few episodes earlier. She then one-ups herself by taking on Whitney's Miltank, the most infamous That One Boss in the entire Pokémon franchise, and beating it on her first try, without even having that much difficulty.
In episode 61, it takes a lot of MooMoo Milk and panic on Lucah's part, but RickNMorty successfully defeats Will of the Elite Four all on her own.
Episode 104, aka the finale. Fresh off of beating Lance (and the Elite Four as a whole) for the second time in the last episode, Lucah takes her level 70 party to Mt. Silver for one last fight. Considering how much trouble the Elite Four rematches gave her, particularly Lance, one would expect several episodes of failure with Level Grinding Twitch streams in between before she is able to defeat Red's level 80+ party. She defeats him on her first try in what is practically a Curb-Stomp Battle. She only has one Pokémon faint, and it's at the very end.
The entirety of her Phoenix Wright: Ace Attorney LP ends up being this, but there are some things of special note:
Most of the time she's able to piece things together right away, and even when her speculations are way off-base, she ends up being Right for the Wrong Reasons anyway. In the end, she only takes three penalties throughout her entire blind playthrough, which is quite an achievement. Perhaps she was trying extra hard in order to impress Edgeworth.
Special credit goes to her following in the footsteps of NintendoCapriSun and Super Jeenius and getting through Damon Gant's double instakill trap on her first try. Doubly so because, unlike the former (who recognizes the trap and avoids it) and the latter (who simply wants to avoid incriminating Ema), Lucah succeeds through her sheer determination to deliver the justice Gant so richly deserves.
She almost immediately figures out how case 2-2 will turn out upon talking with Director Hotti (specifically the fact that it was Ini Miney who died in the car crash and not Mimi).
In episode 23, she immediately realizes what happened with Léon just by seeing Maya sneeze.
Some people have commented saying that watching Lucah play through the near-universally loathed third case in the game has caused them to change their mind and start liking it. That's quite an achievement.
On top of that, she completes the case without receiving a single penalty the whole way through, including navigating Moe's testimony (generally considered to be one of the hardest segments in the original Phoenix Wright trilogy, if not the entire series) without any slip-ups.
The most noteworthy case of this is when she figures out that there are two Irises in case 3-5 long before Bikini touches on the subject. When Bikini does reveal this, Lucah outright states that it took all her strength and willpower not to throw the 3DS she is playing the games on across the room.
In episode 8, she beats Mr. Vile's minigameon her first try, without using the Running Shoes. Made monumentally more impressive by the fact that this is Lucah's first time playing the game and one of her first times playing a 3D platformer at all, so she regularly struggles to do even the simplest things just because she isn't used to the controls yet. Jon is suitably dumbfounded.
Episode 17:
After accidentally ground-pounding during the timed engine room challenge and nearly falling to her doom, she manages to recover in a way that needs to be seen to be believed. While she accidentally falls immediately after, it's still an utterly incredible bit of maneuvering, especially considering her aforementioned lack of experience with 3D platformers.
She gets the propeller Jiggy (widely considered to be one of most difficult Jiggies in the game, if not the most difficult) on only her second attempt, reaching the goal with one second to spare.
In episode 21, she makes a second impressive save, this time in Click Clock Wood, where she manages to recover from slipping off the roof of the treehouse by Flap Flipping mid-slide at the last possible moment.
She manages to collect every single Note, Jiggy, and Honeycomb Piece in the game with very little handholding or outright help from Jon.
In one of the very first episodes of Danganronpa: Trigger Happy Havoc, she manages to correctly guess one of the bigger twists of the game: that the Killing Game is being broadcast.
Non gameplay example, but almost as soon as she gets the Pokétch, she begins using the Memo Pad to create drawings of Pokêmon to have on the bottom screen while she plays that range from very good to incredibly detailed. For a while, she even makes a new drawing Once an Episode.
Lucah not only overcoming her fear of fighting Cynthia and her team, but also beating her in the final main game battle. She beats what many consider to be one of, if not the hardest boss fight in the entire Pokémon series on her 2nd try... in a blind LP. What really sells this moment is the confidence and skill Lucah displays; it's a far cry from her early days of Pokémon Let's Plays and shows how far she's come with understanding the mechanics of the series.
In Super Mario RPG, Lucah fights Culex for the first time with the sub-optimal party of Mario, Peach, and Bowser, and wins. How? By giving Bowser, who is widely considered to be the worst character in the game, the Lazy Shell armor and the Safety ring and soloing almost the entire fight with him. Mario and Peach spend almost the entire half-hour-plus fight unconscious while Bowser takes essentially no damage from almost all of the boss's attacks. ProtonJon, who is co-commentating the LP with Lucah, later comments saying he went silent during the start of the fight once he realized Lucah's strategy was actually going to work.
In her LP of Banjo-Tooie, there are some moments of note:
She stumbles into Lord Woo Fak Fak's lair and is forced to take him on without using the level's transformation. In spite of struggling just as constantly with the first-person egg aiming controls as elsewhere, she puts up an epic struggle, and finally manages to land the last needed shot in his eyes while having only one health left herself, beating him on her first try.
Jon managing to beat both of the Canary Mary races in Cloud Cuckooland on the first try, despite having a lack of confidence in his arms after winning the first race. Doubles as a funny moment, because Lucah attributes the victory to her singing the theme of Zoobilee Zoo, because, as she puts it, it gave Jon the energy to muster both victories.
how the streaks of blood look kind of like the EA logo... only to have the answer dawn on her right there and then.