Hi Chekisteg!
Please consider that this jam is supposed to spread joy and hope. Since there's enough fighting in this world, we encourage you to think out of the box. Of course it's a thin line (Super Mario jumping on a Goomba could be seen as combat).
I think it depends on the overall gameplay. If your game mainly is about killing stuff, it won't be appropriate to the jams theme.
Just make sure that your game fits peace more than war.
If you'd like to discuss your idea, please reach out to us on our discord channel: https://discord.gg/8syHP2Db
Best of luck, Kev