One possible plot twist could be that Kirby's trainer turns out to be an enemy in disguise. He's been teaching Kirby wrong techniques on purpose to make him fail later. Another twist could be that Kirby discovers a hidden power within himself during training that no one expected. This new power could change the whole dynamic of his training and his future as a Star Warrior.
In a 'kirby trained as a star warrior fanfic', there could be a plot twist where the methods of training are actually harming Kirby instead of helping him. He has to find a way to adapt and still become a Star Warrior. Also, it could be that the Star Warrior concept itself is a lie, and Kirby is part of a bigger experiment. This would completely change the direction of the story and Kirby's perception of his training and purpose.
A plot twist might be that the training facility for the Star Warriors is actually a trap set by an evil force. Kirby and the other trainees have to figure out how to escape while still continuing their training. Or perhaps Kirby finds out that he's not actually supposed to be a Star Warrior at all, but he has a different, more important destiny that goes against what he's been training for all this time.
One possible plot twist could be that Kirby's transformation into a star warrior is actually part of an enemy's plan. Maybe the enemy wants to use Kirby's new powers for their own evil purposes.
Well, in a 'kirby trained as a star warrior fanfic', Kirby might go through intense training sessions. He could be learning new combat moves, improving his speed and agility. Maybe he's being mentored by an experienced Star Warrior. This kind of fanfic often explores Kirby's growth and development into a more powerful and skilled fighter, which can be really exciting to read.
In a 'game kirby meets anime kirby fanfiction', a plot twist could be that there is a prophecy that when the two Kirbys meet, one of them will lose their powers forever. This creates a lot of tension between them as they are not sure which one it will be. Also, it could be that an ancient artifact in the fanfiction is the key to their co - existence, but it has been broken into pieces. The two Kirbys then have to search for the pieces and put it back together while being chased by enemies who want to use the artifact for their own gain.
Another plot twist could be that Obito is secretly training Naruto to fight against an even greater enemy that no one else is aware of yet. This enemy could be an ancient force that is about to awaken, and Obito believes Naruto is the only one who can stop it. So, he's training Naruto in unique and unorthodox ways that seem strange to others at first.
The 'kirby becomes a star warrior' fanfic would likely be filled with exciting adventures. Kirby could be trained by more experienced star warriors. His appearance might change slightly to reflect his new status, perhaps with a more starry look. And he would surely use his newfound powers to fight for good, making the story full of action - packed battles and heroic moments.
One plot twist could be that Harry is actually a double agent. He pretends to be fully under Voldemort's control while secretly working against him. Another could be that Voldemort's training awakens a hidden power in Harry that is neither good nor bad, but something completely unexpected that changes the whole dynamic of the wizarding world.
One possible plot twist could be that Tsunade trains Naruto not just in physical combat like she did with others, but also in medical ninjutsu. This would be unexpected as Naruto is more known for his brute force. Maybe Naruto uses his new medical skills in a creative way during a battle, like healing his opponents to show mercy and then defeating them when they are off - guard.
A plot twist could be that Slade has an ulterior motive for training Naruto. Maybe he plans to use Naruto as a weapon against Konoha in the future. He might be secretly feeding information about the village's defenses to an enemy while training Naruto. So, when Naruto discovers this, he has to find a way to stop Slade and also deal with the fact that he has been unknowingly part of a scheme against his own home.
One possible plot twist could be that Mikoto discovers Naruto has a hidden kekkei genkai that she helps him unlock. This new power could completely change Naruto's abilities and how he's perceived in the ninja world.
One possible plot twist could be that Sakumo's training methods are very unorthodox compared to what Naruto is used to in the village. For example, he might focus more on stealth and assassination skills which Naruto initially struggles with as he is more used to head - on combat. Another twist could be that Sakumo has a hidden agenda for training Naruto, like he is preparing Naruto for a specific threat that he foresees but hasn't shared with the village yet.