AU Bio: A Swapped Stories AU where the casts of Boboiboy and Digimon Ghost Game switch plots. Hiro and co remain in Japan while Boboiboy and co remain in Pulau Rintis. 

Characters:

1. Amanokawa Hiro + Power: Fire, Lightning, Wind, Shadow, Light, Water, Earth, Nature (order of acquisition)

Quiet, reserved, but also passionate, Hiro is a normal kid who gets dragged into nonsense often. Thus, when he meets GammaBot, Hiro gains a Power Watch that allows him to use 3 elements. Fire, Lightning and Wind. Right after that, he meets Ruri, who is given power by AngoraBot, allowing her to manipulate time and gravity as the two fight off DraculaBot, a vampiric Power Sfera. After Hiro is influenced by DraculaBot too much, he unlocks the Shadow Element. He brutalises the Power Sfera until he's stopped by Kiyoshiro, and reverts into a depressive state afterward due to it. However, thanks to his friends believing in him, he can unlock the Light Element and win a fight against an evolved DraculaBot. He also slowly unlocks the other three elements as he grows. 

2. Tsukiyono Ruri + Power: Time and Gravity Manipulation

She's a very happy-go-lucky but also serious kind of person. Her curiosity with Power Sfera got her entangled with DraculaBot, who played pranks on her for fun. Thankfully Hiro saves her, and she also gains a Power Watch to help in the battle. While he manages to get away, she's found a new friend in Hiro, and the two begin rescuing Power Sfera together while working to raise their rankings in TAPOPS, having been recruited by Hokuto. They are soon joined by Kiyoshiro who gained a Power Watch that allows him to alter molecules and energy, but as new enemies arise, the kids must use every wit they have to protect Power Sfera from evil hands. 

3. Higashimitarai Kiyoshiro + Power: Molecular Transformation & Energy Control

While easily terrified behind an arrogant mask, Kiyoshiro has been implied to have some degree of dissociation with himself, evident in how he sometimes seems to be calmer in danger. He first met JellyBot during a chance encounter with Hiro, having been bothered by JellyBot. However, the repercussions of her actions catch up to her, and she syncs up with Kiyoshiro to give him a Power Watch in order to fight against MajiraBot. Ever since then, Kiyoshiro is a member of TAPOPS as well, and while he's scared, he still tries his best to assist the team, taking on the pseudo-leader role.

4. Amanokawa Hokuto + Power: Teleportation

Hokuto is Hiro's father who also got his powers from GammaBot, although he got the power of Teleportation. While he's very absentminded he does care for Hiro, and he sent GammaBot his way to help him out upon sensing that Power Sfera had begun showing up near him. He had his own adventures with GammaBot due to his power, which was why he spent a lot of time away from Hiro; to protect him. He does wish he could spend more time with his son, though, and is relieved to hear he's joined TAPOPS, although it is short-lived with how many attacks the station gets because of him. "Seriously Hiro stop dying so much!!!"

BBB in GG

Characters: 

1. Boboiboy - Wizarmon

BoBoiBoy's father, Amato, is almost always busy, and his mother is supportive of that dream, which allows BoBoiBoy to go to Pulau Rintis for a vacation. There, he gains a VB Digivice during an encounter with Adudumon and Wizarmon, which syncs him and Wizarmon together to fight and win against the Digimon who retreats for now. Wizarmon and he would gain more allies as they go along, forming a team called Rintis Protectors to keep the citizens safe from Digimon. He is an optimistic but also snarky child who grows to appreciate his friends very much. Three years into the future, they have continued to fight against the mysterious force that sent Digimon over, even befriending Adudumon in the process. However, when Wizarmon is deleted by Retakkamon, BoBoiBoy takes care of the egg and it hatches into Bokomon who becomes a Sorcerimon. With this, they manage to unlock a new evolution line, and while his partner may not remember him, he will never forget their memories of him. 

2. Yaya - Goblimon

Yaya is a resident of Pulau Rintis who finds out about Digimon through Adudumon's second attack. Goblimon managed to rescue her during the fight due to Goblimon wanting to break out of the stereotype of being a bad Digimon, and they sync up to help in the fight with Ying and Gopal. Yaya is kind but strict and disciplined, also possessing a short temper at times. She is an avid baker, though their taste is a different story, and will fight as much as she can to save the day. 

3. Ying - Shoutmon

Ying is a resident of Pulau Rintis who finds out about Digimon through Adudumon's second attack. Shoutmon had been watching over Ying due to her speed and excitable personality, which drew him to her and allowed him to sync up with her in order to fight against Adudumon. Ying is studious, competitive (especially with Yaya), and also impatient, but she tempers herself in the three years after she met Shoutmon, the same happening to him too. She is also dedicated to helping others once all her responsibilities are done.

4. Gopal - MarinDevimon

Gopal is a resident of Pulau Rintis who finds out about Digimon through Adudumon's second  attack, but his cowering led him to meet MarinDevimon, who promised to protect him if he showed some courage.  This gave him the strength to fight back, and the two partnered up for the battle. Gopal is a glutton, lazy and cowardly while preferring to play games instead of doing his homework, with a niche of arrogance to it, but he truly sees his friends as such and will fight tooth and nail for them despite his own fear.

5. Fang - Meicoomon

Fang is the second newest member of their group. While he's very vain and crazy for popularity (which puts him at odds with BoBoiBoy at first due to the other's natural popularity), he is calm and rational, able to think up the best strategies when facing dangerous Digimon. Fang has an obsession with carrot donuts and his anger at his soon-to-be friend was finally triggered by the unsuspecting male taking his donut- He had worked with Adudumon in the past, tricked using his envy, but soon he does come around. Meicoomon was disguised as his pet cat who protected him when Guilmon had gone insane due to his Digital Hazard, an incident he eventually remembers, and Meicoomon finally syncs up with him after he joins the team. His brother is Kaizo, and he was actually sent over to investigate the weird incidents happening, but after their fight against him, Kaizo let him stay with the others. Three years later, he remains BoBoiBoy's fierce rival.

6. Kaizo - Psychemon

He is Fang's brother who acts strict and savage but actually cares for his brother a lot. Having been partners with Psychemon for a long time while working with Amato, the older male is described as a mysterious man whose fan club grows stronger every day, much to Fang's chagrin. However, he also respects good fighters, recognising the team as such during their fight and allowing Fang to stay with them, seeing how happy he is with them. Three years later, he becomes one of their advisors as they continue to work on helping Digimon and humans co-exist.

7. Adudumon - Probe

An alternate Rookie form of Evilmon, Adudumon is a clumsy troublemaker who grew up evil due to the belief that he was born that way. This led him to go after Ocho when he first arrived in the human realm, only for BoBoiBoy to save him from a grueling fate. From there, the two began their long battle. However, when Ejojomon showed up to destroy the team, Adudumon loses his only friend, a robot named Probe, to him, and eventually teamed up with the team in order to stop him and bring back Probe. The development allows him to defeat and delete his mom when she shows up to "reeducate" him, realising that she had done nothing to help him when he was younger, and officially joining the team as their first Digimon-robot pair with Probe. While he's pretty selfish and hot-tempered at first, he grows to become more understanding and helps the team however he can, syncing up with BoBoiBoy during emergencies to evolve into Evilmon, then to Tekkamon and HiAndromon. 

8. Ejojomon

He's a Perfect-level Digimon who bullied Adudumon when he was younger. Arrogant, downright evil and sadistic, Ejojomon will stop at nothing to achieve his own dreams, savouring it especially if it causes suffering. However, he is defeated by the team after he destroyed Probe. 

9. Boraramon

He's a Mega-level Digimon who goes after those weaker than him and wants to be the most powerful in the universe. He manages to delete Guilmon, but BoBoiBoy and Ocho soon defeat him via Ocho unlocking MedievalDukemon. He is arrogant and power hungry, so when he is stopped in his tracks, he is turned into a DigiEgg and sent back to the Digital World.

10. Amato - Guardromon

He is now the guardian between Digimon and humans, with his partner Guardromon helping him as the two go to and from the Digital World in order to protect it from various threats. He is a creative strategist who manages to battle off various Digimon with out-of-the-box ideas. However, this leaves him to be distant from his son; a fact he deeply regrets.

11. Ocho - Guilmon

He is BoBoiBoy's cousin who is sent with him to Pulau Rintis. Prior to his arrival, he was already partnered with Guilmon, so when his cousin finds out about Digimon, Ocho comes clean about how he had been saved by Guilmon from dying back in Kuala Lumpur. They end up working with the group to stop various threats, but when Boraramon shows up he kills Guilmon, only for Ocho to unlock MedievalDukemon after his rebirth with the help of a cynical man named Klamka who had been the first DigiDestined. Later on, Klamka passes on, glad to have helped the kid grow a bit before he died, the new friend to his old partner... Ocho is happy-go-lucky and optimistic, with a bit of snark and a parental vibe to him despite being the youngest.

12. Retakkamon

A power-hungry and delusional Digimon who takes down Wizarmon and causes BoBoiBoy to go through his personal feelings and then take down various other DigiDestined to take over the human world. At the end of the day, he's defeated and reborn as a DigiEgg. 

I'll add more as I go XD but here we go!