How do you get the other ending on grow island

There is a UFO ending (all levels UFO):

1. Steering Wheel - 5
2. Pick Axe -3
3. Logs - 6
4. Computer Chip - 2
5. Battery - 1
6. Bolt - 8
7. Burner/Candle - 4
8. Smokestack - 7

Regular Ending (all levels max)
1. Bolt
2. Pick Axe
3. Logs
4. Steering Wheel
5. Smokestack
6. Battery
7. Computer Chip
8. Burner/Candle