Brobajell is a Mirror Monster and an antagonist in episode 33.
Kamen Rider Ryuki
Brobajell was encountered by Shinji while traveling. He initially beat back Ryuki, but after Ryuki summoned Dragreder Brobajell was destroyed by Ryuki's Dragon Rider Kick.
A Brobajell later appeared as one of the Mirror Monsters that helped to protect Yui.
Kamen Rider x Super Sentai: Super Hero Taisen
A Brobajell was one of the members of the revived Dai-Shocker under Doktor G (secretly Narutaki in disguise). After Dai-Shocker allied with Dai-Zangyack to wipe out the combined forces of the Kamen Riders and Super Sentai, Brobajell was one of the monsters that took part in the ensuing battle. It is seen fighting OhRed, GoggleBlack, DenziGreen, and GingaYellow.