Remember these are optional secondary themes. You can use as many or as little as you like (even none at all), the only fundamental rule is that your game contains mech/mecha. The optional secondary themes do not impact the voting in any form.

Diplomat 👔

Time Travel ⌚

Weird Fiction 📖

Arena 🏟️

Shifting Sands 🏜️

Cosmonaut 🧑‍🚀

Relax 💆🏻‍♀️

Signal Failure 📡

Resurrection 😇

Also if you do want to use any of the optional secondary themes they are yours to interpret however you want. That's why they are all quite vague. To encourage you to think outside the box 🙂