Also known as Sword of Seals, Roy's game could be said to be the beginning of a new era of Fire Emblem. It introduced us to a brighter color palette, more streamlined class design, a lighter artstyle, and of course, the fantastic GBA sprite animations.
The Binding Blade is probably most known for its hero, Roy, who appeared in Smash Bros. Melee. Despite Roy's popularity in Smash, many people wouldn't get the chance to play his game, because it never received an official release in the west. When the game's prequel, Blazing Sword, was the first Fire Emblem game to be localized, many would jump on the fan translation of Binding Blade (called Sword of Seals, another accurate translation of the game's Japanese title). Even still, for mainstream western gamers, The Binding Blade would be lost to them.
Roy would even vanish from Smash Bros., being replaced with Ike as the representative of the then-latest entry in the Fire Emblem franchise. It wasn't until Smash Bros. for Wii U and 3DS that he returned, and even then only as DLC. He received a massive redesign, making him look older than his boyish incarnation in his original game, and would again return for Smash Ultimate, where he is once again a fan favorite.
How do you feel about the original game, if you played it? It's known for its harder difficulty as compared to other two GBA games, but the way its story blends in perfectly with its prequel is amazing. If you play Blazing Sword and Binding Blade in chronological order, as most westerners did, it feels entirely natural. It really speaks to how well crafted the narrative in Blazing Sword was.
I also love the super bright colors of this game.