How about some special timed mutators, e.g. suddenly the head splits into two and you have to bounce both at the same time. Or the head suddenly starts to bounce three times harder for a short period of time. To keep the player on their toes.
Someone suggested that it should grow a new head at 100 points but by the end I had no energy left for it :D Pick-ups would be a good idea for a v2 if that ever happens 👍
