Heartspore
Mid-round, one big rose light worth 6 rises far from the leader, and every worm gets an arrow to it.
Every round now has a turn in the middle. With 38 seconds left, one heartspore rises in the cave, in the open spot farthest from every worm. It is worth 6, one more if it sits in the dark pocket. It takes 3 seconds to ripen, and nobody can eat it until then, and bots only start for it once it is ripe, so a person who moves at once has a head start. A rose arrow on the screen edge points to it, and the top-left counts down. Whoever reaches it first takes it, so a worm in fifth still has a real way back.
The round is the same one: seventy-five seconds, up to eight worms, and the brightest light at the end.
