An unknown scientist had discovered a new technology can reduce amount of fuel for traveling star system. He co-operated with the United Hero Force to made Fuel Saver.
- Cost: 1k9 keys
- Upgrade cost: 420 keys
- Level 1: -10% amount of fuel
- Level 2: -15% amount of fuel
- Level 3: -20% amount of fuel
- Level 4: -25% amount of fuel
- Level 5: -30% amount of fuel
- Level 6: -35% amount of fuel
- Level 7: -40% amount of fuel
- Level 8: -45% amount of fuel
Shere your opinion in your reply. Do you think its good ?