Occasionally, a box symbol will appear on top of the head of a planet's inhabitant. This indicates that it wants you to deliver the box to another planet.
- Tap on the box button in the bottom left corner of the main page to head to the inhabitant's planet.
- Wait for your spaceship to arrive at the planet (you can use the Boost function below the box button to speed things up)
- Tap the box above the inhabitant's head to accept the package.
- Tap the box button in the bottom left corner once more to find the target planet and wait for your ship to arrive.
- Tap the box above that planet's inhabitant's head and the delivery mission will be complete!
These adorable alien inhabitants will give you a few gold coins or energy cubes as a reward! Completing delivery missions is an excellent way to collect energy cubes!