|This article is about a/an monster in Battle Fever J.|
The Heart Monster (シンゾウ怪人, Shinzō Kaijin) is the forty-third of Egos' Monsters. He could move very fast, teleport, had a zigzagged sword, and jump high. Heart Robot could also move fast, teleport, and had a zigzagged sword as well as emit explosive mist from the mouth.
- Heart Monster were designed by character designer Ryuu Noguchi.