Battle Royale 2 is pretty much divorced from the original Battle Royale. It feels like a fan created doujinshi at times, and yet also doesn't, as there's clearly a connection to the original works, even if it's not a direct sequel.
But everything here changed, and the biggest change is the art. I personally don't think the art in Blitz Royale is that bad, however it's a style that relies more on clue as almost every character's face is drawn similarly. The problem is that the clues of hair or outfits get lost in the manga because eventually everyone wears battle fatigues and helmets. The art is a stylistic choice, but it's not one that works well in the manga's favor.
However the bigger change is the story, and it's a change that feels necessary. As I said this isn't Battle Royale 2. This doesn't continue with the same characters, but also isn't just a second Battle Royale/Program. Instead we have a new "different" Program, run by the Navy. However it's not entirely clear what's different, or how this isn't the same as the original manga's "Program".
The reason I still recommend Battle Royale is the story. Unlike the original manga, where almost every main character seems ready to fight in the Battle Royale, Blitz Royale spends much of it's time outside of the actual fighting and focuses more on the aftermath of battle, preparation, and how the students would realistically deal with the situation they find themselves, knowing almost no one will survive. In fact, I feel that's something that was lacking in the original manga, as if the entire class just accepted they'd fight, or try to run with out having to deal with the fact that is happening.
The ending of Blitz Royale is weaker though, however while some of it feels like it may have been cut short, but overall the manga has interesting changes from the original to the point that if someone wanted a more realistic look at the world of Battle Royale, Blitz Royale might be it. If reader want "another Battle Royale" Blitz Royale fails, and if readers are hoping for excellent art, this is probably something to skip.
