I’m happy to hear you enjoyed the first bit! :D I had big plans for variety of enemy waves, unlockable perks, and even a leaderboard, but I simply ran out of time.
Currently, the boy and girl will follow the player once they spot an enemy (otherwise, they just roam). I originally intended for them to have unique paths, the boy running away from enemies while the girl follows the player, but I missed that window in the heat of the jam. Perhaps I'll add that in a future update!