Of the combat robots built by Hige Hige dan in their ongoing schemes to rule the world, many are failures. Rajibon was one of these robots. Because he would rather run than fight, and because he did not care about his intended purpose, he was tossed into a dump with other defects. He escaped from the garbage heap and began to run as fast as he could, wishing to be the fastest in the world. At some point in time, he happened upon the Bomber Tournament and became one of its participants.
- The name "Rajibon" comes from the Japanese word "rajio", meaning "radio".
- Radiobomb Jr., known as "Rajibon Jr." in Japan, may be related to Rajibon.
- Saturn Bomberman Fight!! manual, pg. 28