The most controversial part is probably Daenerys' actions in King's Landing. She had been built up as a hero, and then she just burns the city down. Also, the way Bran Stark becomes king without much of a struggle or a proper election-like process is also a bit odd to many fans.
Arya's training with the Faceless Men has some memorable moments. For example, when she first starts learning their ways and has to go through various trials. Also, her encounter with Jaqen H'ghar is quite significant. He plays a big role in her journey to becoming a skilled assassin. And of course, the moment she avenges her family by killing Walder Frey is unforgettable. She serves him the pie made of his sons and then reveals who she is before slitting his throat.
One of the most important events was when he killed King Aerys. It was a turning point for him. Another was his capture by the Starks and his time as a prisoner. His relationship with Brienne also had a major impact on his story, as she saw the good in him when others didn't.
One important event was when he met Arya. Another was when his true parentage was revealed. And finally, his legitimization and becoming a lord.
Definitely his trial is a very memorable part of his story. Standing there, facing all those who hated him or were jealous of him, and still having the courage to speak his truth was remarkable. And later, when he escaped from King's Landing and joined Daenerys. This was a turning point in his journey. He saw in her a different kind of ruler, one that he could potentially support and help, which added a new dimension to his story as he started to have a new purpose in a different land far from Westeros.
The hatching of the dragons is very significant. Also, when she freed the slaves in Slaver's Bay.
When Ned Stark was beheaded. He was presented as one of the main protagonists, and his sudden death was a huge shock. It made viewers realize that no one was really safe in the Game of Thrones world.
Discovering new biomes is really exciting. You might stumble upon a lush jungle full of tall trees and strange animals, or a frozen tundra with ice spikes. Another exciting part is when you defeat a difficult boss mob like the Ender Dragon. It gives a great sense of accomplishment.
There are several memorable events in the Game of Thrones story. When Arya killed the Night King, it was a major moment as it was a huge victory against the White Walkers. The Walk of Shame for Cersei was also quite memorable. It was a very humiliating experience for her. And the Battle of Blackwater was a great battle that showed the strategic warfare in the story. There were so many interesting things that happened during this battle like Tyrion using wildfire to defeat Stannis' fleet.
In the first story of Game of Thrones, Ned Stark is a key character that sticks in your mind. He's a man of principle trying to navigate the murky waters of King's Landing politics. Then there's Arya Stark, a young girl full of spunk and determination. She's different from the typical noble girl. Jaime Lannister is also memorable for his complex relationship with his sister and his role as a knight. These characters all contribute to the rich tapestry of the story.
Arya Stark is very interesting. She goes from a young girl to a skilled assassin. Also, Tyrion Lannister with his sharp wit and being an outcast in his own family is quite engaging.