Mario befriends the bad guys

Location: Kaihin Makuhari, Japan

Mario and the bad guys are friends.

マリオと悪人たちは友達だ。
mario to akunin tachiha tomodachi da .

How to say bad guys in Japanese
Another word for bad guys in English is villains.
In Japanese, simple way to say bad guys is 悪いやつら (warui yatsura), or in shorter form 悪人(akunin)。