The Theme is Gameboy and... PLANT/PLANTS!
This can be any interpretation of the word "plant" or "plants" - including but not limited to:
- Plants (the things that grow)
- To hide something secretly (i.e. "planting" incriminating evidence)
- A spy or covert operative "planted" within a group of people
- A power "plant"
- "Planting" flowers, trees, flags or fence posts.
- You could even have an acronym for P.L.A.N.T (Pirates Like A Nautical Theme)
Be creative with it!
If it's not clear how you've interpreted the theme because you were so clever, consider including an explanation in your game's short description.