Unleash your imagination!
So, the theme's out, and it caught me a bit off-guard.
But as always, I worked out the theme and integrated it to the original idea for Lily Adventuresses! Episode 2, which involves a military woman forming a bond with a sentient being in order to wield a sacred weapon. This is mainly due to the influence of Ultraman Arc, which I'm watching every week.
And here's the title screen of the game I'm making.

Now to explain the title. "Arcritter" is the combination of "arc" and "Ritter" (the German word for "knight"). It also contains the word "critter", which is analogous to "tiny creatures". The four main characters in this game are pacted to sentient beings called Arcreatures, which usually take the form of ordinary animals such as cats and dogs. These Arcreatures can then transform into sentient weapons to aid the Arcritters in combat.
And now I'm gonna write the story on this lovely morning.