Aconcagua Special Robo-Fusion is a powerful machine created by fusion of six hombis:
- Maipo (or Domuyo if Maipo is not here)
- Fuji (or Kliuchevskoi if Fuji is not here)
They have not joined yet, but if a major danger menaces Earth (i.e. an asteroid), they will become Aconcagua Special Robo-Fusion to destroy that threat.