Cyan Teddy Bear!
I was hoping that I’d be inspired to think of an all-new game idea based on the theme, but unfortunately I couldn’t come up with anything interesting.
So, I’m resorting to my usual LD plan, which is to make one of my existing game ideas: a top-down, tile-based, turn-based, Thief-alike with a squad.
Here’s some programmer art! Say hello, Teddy:

ART
In a desperate bid to introduce something that I hadn’t already thought of, I’ve decided to make all the characters teddy bears, differentiated using texture swaps. The above is the result of an afternoon spent bending Blender to my iron will, imported into Unity with a toon shader chucked onto it for the hell of it.
The real teddy is sitting on my desk. Reference, you know.
Now I just have to: write a way of making levels that’s less tedious than piecing together Unity scenes, make some level art, add some turn-based tile movement with multiple player-controlled characters, add a GUI to select characters / end the turn, write some AI guards to detect/hunt/kill the players, make it possible to win, make one fun level, tweak game mechanics to maek gaem betar, make more fun levels, add sound effects and music, and add a title screen and menus.