Shinsu Bomb

Shinsoo Bombs are a type of weapon used by Ja Wangnan. He throws one, and it blows up in a cloud of dense Shinsoo.

They are a reference to Poke-Balls, sharing a similar appearence, and a blue top, instead of red. They are bright cyan on the top half, and white on the bottom. They are supposedly quite powerful, although a member of FUG was able to resist them almost effortlessly.

Trivia
Another reference to Pokemon, SIU's motif for Lero-ro was Pikachu.