I'm not entirely sure which specific 'all hallo games' you are referring to. There could be many indie or niche games with that name. Maybe it's a local or very specialized gaming project. Without more context, it's difficult to tell the exact story.
As I don't know the specific 'all hallo games' story, I can't say for sure. But if it's a story - based game, it might have characters with unique personalities as a main feature.
One of the best elements is the expansion of characters. Fanfics can give more depth to characters like Garrus, showing his life outside of Shepard's missions. Another element is exploring new planets and species. Some fanfics create whole new ecosystems and civilizations. Also, the ability to rewrite certain plot points in a more interesting or satisfying way, for example, giving a different ending to the Krogan Genophage storyline.
No. Each Zelda game has its own unique story. For example, 'The Legend of Zelda: Ocarina of Time' focuses on Link's journey to stop Ganondorf in the land of Hyrule. While 'Breath of the Wild' has a different setting and plot where Link wakes up after a long slumber to save Hyrule from Calamity Ganon. The characters, quests, and overall plotlines vary greatly from one Zelda game to another.
No. Ys games have diverse stories. Some might be about different quests in the same world, but not the same story. Each game can have its own antagonists, goals for the protagonist, and events that are unique to that particular installment.
No. Halo games vary in their features. Some Halo games offer a coop story mode which is great for playing with friends and sharing the story experience. However, there are Halo games that are designed mainly for competitive multiplayer or have a solo - focused story mode without coop functionality. Each game in the Halo franchise has its own design goals and target audiences, and not all of them prioritize coop story.
Definitely not. Some Pokemon games are set in different regions with distinct cultures and Pokemon species. These differences lead to diverse storylines. For instance, the Kanto region games might have a story centered around Team Rocket's mischief, while the Hoenn region games could involve a different set of villains with their own motives. The new generations of Pokemon games also introduce new gameplay mechanics and features that are integrated into the story, making each game's story stand out on its own.
Sure! One great 'Mass Effect' fanfic is 'The Shepard Chronicles'. It delves deeper into Shepard's backstory before joining the Alliance. Another is 'Mass Effect: Redemption of the Rachni' which offers an interesting take on the Rachni species. And 'Liara's Journal' gives a more personal view of the events through Liara's perspective.