Speed-o'-Sound Sonic vs. Paradise Group and Hammerhead

I've never let an opponent live. And I don't intend for that to change. I'm a perfectionist in my work. If you give up now, I'll let you live. So what will it be? Speed-o'-Sound Sonic vs. Paradise Group and Hammerhead was the battle between the ninja assassin Speed-o'-Sound Sonic and the B-Class criminal Hammerhead and his followers, the Paradisers.

Prelude
Hammerhead and the Paradisers threaten the life of Zeniru, who they believe to be corrupt. During their rampage, they defeat several riot cops and the top C-Class hero Mumen Rider. Zeniru is told to hide but refuses to do so, because it would ruin his reputation. Sonic then proclaims he will kill Hammerhead and his followers.

Battle
As the Paradise Group closes in on Zeniru's home, Sonic confronts them and kills several of them. Hammerhead then throws boulders at Sonic in an attempt to crush him, but Sonic dodges the rocks. He then tries to crush Sonic with a tree but Sonic gets behind Hammerhead and hits him with a kunai.

Aftermath
Sonic calls Zeniru and tells him that he's dealt with the Paradise Group and that the body of Hammerhead is there, only to find out that his body isn't there. Hammerhead runs off into the woods and is lucky that the kunai hit his head.