This strongly reminds me of 4 games. Megaman, SSBB, Spiral Knights, and Cave Story. They're all amazing games and now it's like one huge collaboration of epicness.
Here's my perspective: This ship contains the last of humanity, and things to keep them alive such as homes and farms inside of it. It only runs on solar power, and if you stop now you'll surely crash and kill everyone. You have to stay with the sun.
I see you there! Looking at comments while you wait for your troll to gather enough likes or for your run to end. Just hurry back, your troll loves you.
Cool story, thanks for sharing!