The Engine Upgrade is the ninth upgrade, creates a balloon pump that creates balloons.
| Level | Cost | Effect |
|---|---|---|
| 1 | 500 | +1 Balloon Pump
1 Balloon Pump |
| 2 | 5000 | +1 Balloon Pump
2 Balloon Pumps |
| 3 | 50000 | +1 Balloon Pump
3 Balloon Pumps |
| 4 | 500000 | +1 Balloon Pump
4 Balloon Pumps |
| 5 | 5M | +1 Balloon Pump
5 Balloon Pumps |
| 6 | 50M | +1 Balloon Pump
6 Balloon Pumps |
| 7 | 500M | +1 Balloon Pump
7 Balloon Pumps |
| 8 | 5000M | +1 Balloon Pump
8 Balloon Pumps |
| 9 | 50000M | +1 Balloon Pump
9 Balloon Pumps |
| 10 | 500000M | +1 Balloon Pump
10 Balloon Pumps |