How do you get the secret ending on grow valley

Underground Ending *click as soon as possible on each*
1. Magnifying glass
2. Gear
3. Heart
4. Computer Chip
5. Compass (or is it a surveyor's transit?)
6. Pickaxe
7. Beaker

Regular Ending
1. Compass
2. Pickaxe
3. Computer Chip
4. Gear
5. Magnifying Glass
6. Beaker
7. Heart