The 24 people's blue hidden bosses are Lei Hu (a demon weapon that loses blood, first hurts himself and then hurts others) and Hakata Sai, the deputy chef (a strange Hakata Sai ring is lost, which is useless to support blood).
Then there are the hidden boss that appear after defeating Light Light Blue: Tyrannosaurus Rex, Dirty Devil, Cold Zen Turtle and General Black Fin. The weapons they dropped are vitality cold Zen turtle weapons, deadly black fin weapons, iron wall weapons and so on. Among them, the deadly black fin weapon is more cost-effective and suitable for use as an alternative weapon.
The main problem of brushing hidden weapons now is that there are fewer people playing hidden boss and more people playing thunder. After playing the blue hidden boss, few people play it. It's hard to play that kind of boss if there are few people, so I suggest you shout on the power channel in advance and find someone to play with.