Cross Point is a fanfiction idea by Skyknight, mostly going up here in case he actually feels he can actually write it properly (there's a rather nasty plot hole in the middle that he can't seem to fill, even over ten years)—think of it as the TV Tropes equivalent of a whiteboard. It's a Crossover between Yu-Gi-Oh! (the original manga series, mind you) and JoJo's Bizarre Adventure.
It all starts innocently enough. Yugi & Co. are celebrating entry into senior year by going to a karaoke club. Only problem is, a Yakuza boss is using one of the rooms in preparation for a transaction, and this same Yakuza is being targeted by Panfilo Cappelletti, a rather impressive assassin who never seems to need weapons. Although Panfilo manages to dispatch the bodyguards, the boss himself is able to run for cover—right into the room Yugi and his friends are using. Panfilo makes it to him anyway, and is prepared to execute the criminal...or he would, if not for the intervention of Jounouchi and Anzu, and their suddenly-awakened kas (which Panfilo insists on calling "Stands"). Although Panfilo is driven off, it turns out that stopping the assassination has embroiled everyone in an old plot stretching back to the founding of Kaiba Corp....
- All Your Powers Combined: Black Keys has access to less potent versions of the abilities of the Big Six. Although Gozaburou mostly relies on the abilities of Rage for the Machine, Coldplay, and Division Bell.
- Always Identical Twins: Averted. Lauretta and Emilia are fraternal twins.
- Big Bad Duumvirate: The D'Arby brothers, leading a new Ennead assassin guild (with Hol Horse, Mannish Boy, and Cameo replacing the lost N'Dour, Anubis blade, and Pet Shop).
- Bittersweet Ending: Gozaburou's no longer an issue—as far as anyone knows, anyway—but there's still the fact that Jounouchi's father has died from the wound inflicted by Status Quo. Daimon won't want to appear near Jounouchi if he knows what's good for him...
- Death or Glory Attack: How Honda sees using the Ritual Knife on himself when the alternative is letting Yugi and Anzu get killed by Mariah.
- Defeat Means Friendship: The Montecchi twins.
- Disability Superpower: The penalty game that Atem subjected Sozoji to way back in the third story of the manga did destroy his hearing...but in the process awakened Quiet Riot, which grants Sozoji much better hearing.
- Dragged Off to Hell: Terence's fate after Gozaburou steals his body, courtesy the now-freed ghost of Dr. Elliott.
- Energy Absorption: If Canned Heat catches an energy attack, it adsorbs some of the power to imbue its own attacks with.
- Evil Cripple: Terence has been stuck in a wheelchair ever since Jotaro's No-Holds-Barred Beatdown of him.
- Grand Theft Me: Near the climax, Gozaburou finally gets a proper body again—by stealing it, and Atum in the process, from Terence.
- Green Thumb: Language of Flowers. While tangling enemies is an obvious use, Lauretta has an additional way to manipulate the plants— set them up like artillery and channel her Hamon through them.
- Heel–Face Turn: Oingo and Boingo. Hol Horse to a lesser degree—he's still an assassin, but in the end, he teams up with Panfilo, who isn't exactly uncaring about whom he targets.
- Much earlier on, the Montecchi sisters decide that helping Panfilo really is a Bad Idea.
- Hitman with a Heart: Panfilo only targets customers and members of organized crime, and he's bothered by the possibility of dragging the Montecchi sisters into the business. He's especially bothered when Gozaburou and the D'Arby brothers turn out to be targeting Jounouchi and Yugi because of their connections with Kaiba.
- An Ice Person: Coldplay, and therefore, Black Keys.
- Insistent Terminology: For the most part, the protagonists use "ka" to refer to what everyone else calls a "Stand"—which makes sense, as "ka" is how they first learned of the entities. Kaiba is a notable (and understandable; he's barely involved at all until Outa infiltrates the Kaiba Corp. building) exception.
- It's Personal: Why Daniel abandons Gozaburou. Even though the D'Arby brothers had little use for the idea of avenging each other's losses, avenging betrayal is a different story, and Gozaburou definitely betrayed Terence.
- Ki Manipulation: For all intents and purposes, Lauretta's Hamon—she was taught by Messina. Even if she does usually channel the Hamon through the plants she controls.
- Killed Off for Real: Cameo (shot by Hol Horse), Terence (gets Dragged Off to Hell after Gozaburou steals his body), and Outa (mortally wounded in Nifleheim's collapse, he lets himself become the font of Gozaburou's first post-vampirism meal).
- Light 'em Up / Casting a Shadow: Wadjet's beams. While it can just send out the light in a fashion like a laser barrage, there's a special containment quality to the static beams—except for Anzu herself, anyone who sees the light and darkness that Wadjet creates cannot bring themselves to do anything that they know would cast a shadow on the light beams, or let light fall upon the dark beams. She uses this to prevent Kawakura's assassination despite her being under Ace of Base's trance—he can't let his shadow fall on the light, and so can't get closer to the bomb that Akaida set up.
- On the antagonist side, there's Panfilo. Genesis can cause an area to experience a sudden flood of light or darkness. Because of the physical properties of light, being in an area of light badly freezes you (sudden outflux of energy in the form of light), and being in an area of darkness burns you (you're part of what's absorbing all the energy).
- Make Some Noise: Quiet Riot has an unusually broad spectrum of sound-related powers. It can even use a spiritual equivalent of interference to amplify or lessen a Stand's effects.
- The Mole: Turns out that the D'Arby brothers were secretly working for Gozaburou back in Stardust Crusaders, keeping an eye on Dio. With orders to blow up Cairo if there was no other way to keep Dio from running roughshod over Gozaburou's plans.
- Next Sunday A.D.: With respect to when Yu-Gi-Oh! was first published, anyway. The story is specifically set in the year 1999 (Yu-Gi-Oh was first published in 1997).
- Playing with Fire: Wepwawet.
- Politically Incorrect Villain: Tsuruoka, Akaida's most recent employer. Even Akaida isn't impressed with his "armchair tennoist" nature, but a hit's a hit.
- Posthumous Character: Ouji Hiroshi, who used to be part of the Big Six. Daimon and Akaida killed him when it looked like he was planning on abandoning Kaiba Corp.
- Prophecy Twist: Standard operating procedure for Thoth. Hol Horse, however, actually gets a positive result from it for once. He realizes that another way to interpret the image that seemed to predict him shooting Anzu is him shooting Judgement—the apparent split of Anzu's face is just the tracing of the bullet's trajectory.
- Psycho for Hire: Akaida. It turns out that some of his Playing Card Bomber kills weren't hired hits. He's just addicted to finishing other people's fates. However, his employers actually liked that—it made it more difficult for police to tell that not all the killings were random.
- Shout-Out: As per usual for Jojo:
- Panfilo Cappelletti's Stand: Genesis
- Akaida Ukikuro's Stand: Ace of Base
- Lauretta Montecchi's Stand: Language of Flowers
- Emilia Montecchi's Stand: Canned Heat
- Sozoji's Stand: Quiet Riot
- Oushita Kounosuke's Stand: Slipknot
- Ouji Hiroshi's Stand: Division Bell
- Outaki Shuuzou's Stand: Coldplay
- Ouka Chikuzen's Stand: Covenant
- Outa Souichirou's Stand: Rage for the Machine
- Daimon Kogorou's Stand: Status Quo
- Tsuruoka's Stand: Hundred Reasons
- Kaiba Gozaburou's Stand: Black Keys
- Spell My Name With An S: Although Atem and Atum should mean the same thing, the two spellings are used in the story to help readers distinguish between the Pharaoh (Atem) and Terence's Stand (Atum).
- The Stinger: Pegasus has a Stand, whose awakening let him survive Yami no Bakura's attack. And Gozaburou not only still inhabits Terence's body, but he's now a vampire on top of everything else.
- Super-Empowering: Wepwawet and Wadjet had actually been pushed to the brink of activating on account of Jounouchi and Anzu having fallen under the effect of the Millennium Rod, due to the thing being made of the same substance the Arrows are, albeit corrupted by the Millennium Book's spells. In fact, if one is around the Millennium artifacts long enough, you can begin to see Stands yourself, whether your own Stand is active or not (e.g. Bakura).
- Then there's the Ritual Knife, made from the Arrowstone meteorite before the Arrows or Millennium artifacts were created. Whether it's dull or sharp depends on if someone who can handle the strain of an active Stand is close enough to it.
- Tarot Motifs: Although Ace of Base uses a deck of playing cards, the effects of the cards themselves are based on the analogous Minor Arcana.
- Theme Naming: Most Stands, as per Jojo tradition, are references to music groups. The protagonists' Stands/kas, however, are named for gods from Egyptian Mythology. Wepwawet, Wadjet, Hapi, Sobek, and Menthu appear, with hints of four others. In the ending, Pegasus reveals, while reminiscing over his miraculous survival of Yami no Bakura's attack, that his Stand is Khensu.
- The Italian characters' given names are taken from three of the storytellers in The Decameron, while their family names are the original Italian of "Montague" and "Capulet".
- Tomboy and Girly Girl: Lauretta, although being the elder sister, is the "Girly" one, while Emilia is, if not a Tomboy, at least a Lady of War. This is more notable with their Stands—Lauretta's Language of Flowers is a set of thin (albeit very durable) roots, while Emilia's Canned Heat is a neuter, hulking brute—an immense contrast to how Emilia herself looks.
- Underwater Base: Nifleheim, a testing facility for Gozaburou's black market weapons.
- Winds of Destiny, Change!: The light from Hapi's spear actually neutralizes luck, making everything run according to karma and intent alone.
- The Worf Effect: Jounouchi, and sometimes Anzu, wind up on the receiving end of this somewhat often.
- You Have Outlived Your Usefulness: Ouji was on the receiving end of this before Gozaburou's (partial) suicide; after voting Seto to CEO, he tried to abscond with a portion of Kaiba Corp's capital, but learned the hard way that he was no longer immune to "extreme punishment". The scary part is the reason: Ouji's death didn't abolish Black Keys's ability to use his Stand power. It doesn't help that that power is slowing causality.
