- For the NPC version see: .
Robo Ball (ロボボール Robobōru) is one of the playable NPC characters in 100% Orange Juice!.
- Lose 1/4 stars when KO'd in battle (as opposed to the standard 1/2).
- Give 1 Win when KO'd in battle (as opposed to the standard 2).
- The character can be purchased in the shop for 4500 (3150 with 30% off) after reaching level 15.
- + Above average DEF
- + Loses half the normal amount of stars on KO
- + Low recovery time
- + Only worth one win, making it a less likely target for win seekers
- + Hyper is very inexpensive and has a very low Norma requirement, and can be used to both protect Robo Ball and to strike back at opponents
- - Very low HP
- - Low ATK and EVD