Here's my idea for the jam:
"GUNSEED!" an explosive fps where you shoot SEEDS into the mud,
blast WATER onto plants, MACHINEGUN pollen everywhere,
toss plantfood GRENADES, and reap the souls of wheat with your razor sharp SCYTHE
Another fun idea would be "INSULT FIGHTING"inspired by Monkey Island Sword Fights
Or how about cake or ice cream decorating with icing blasters and sprinkle cannons!
Or how about an ARCHERY GAME starring cupid?
Or a NATURE PHOTOGRAPHY game with a telephoto zoom sniper mechanic!