DB is different. I don't watch it for the story (like what I was expecting from this manga); I watch it to see a bunch of burly martial artist aliens shout at each other and punch/laser each other to death.
Okay, I haven't read the novel or anything, so I have no idea if this is true (and I don't want spoilers)...but am I the only one getting the feeling that this "game world" is going to turn into the actual world at some point in the story?