Radiant Silvergun is by far one of my favorite games of all time. I picked this game up for my Xbox 360 back in April of this year and it grew on me very fast. Everything about this game great. The voice acting is very good, the story is good and easy to follow, the game play is very challenging but fun none the less and the soundtrack is by far my favorite thing about Radiant Silvergun. Every track in this game is amazing in my opinion.
There's also a very large variety of enemies and bosses you'll encounter so the game play will never feel repetitive and each boss fight is unique and different. There's also a large variety of weapons you can use too and they all have different effects. I would say more about the bosses, weapons, and story but I don't want to spoil you and I'd rather you to play and experience the game for yourself.
Radiant Silvergun was originally only available for the Xbox 360 outside of Japan but recently it was made backwards compatible for the Xbox One. So now Xbox One owners who don't also own a 360 can now download and enjoy this game. I hope that Treasure ports this game to all other platforms too (PS4, Nintendo Switch, PC ETC.) because everyone deserves to experience this masterpiece of a game.
If you love either challenging video games, anime video games, or bullet hell shooters in general then Radiant Silvergun is right up your valley!