Unlockable - Unlockable items |
| Kakusei Sol and Kakusei Ky | Play scramble in RK 2 factory in normal difficulty. Finish last stage with 1,500,000 or more. Robo Ky 2 substance will challenge. Beat him |
| Leapoldan | In arcade mode level 199, you have to beat Leopaldon |
| Zako 1,2,3 | In GG Boost mode, beat Kakusei sol and ky in the last stage to unlock |
| Extra characters | In arcade mode at level 100 or higher, extra characters will challenge you. Defeat them to unlock |
| Antartica stage | In arcade mode level 100, defeat Leopaldan to unlock Antartica stage |
