Drain Mania (11th May 1985) (BBC Model B) A serial platform game in which you must headbutt the patrolling nasties from below then approach them and kick them out of the way.
Rubble Trouble (16th July 1984) (BBC Model B) An overhead maze where you play a caveman who can push blocks about, aiming to crush the carnivorous Krackats who also inhabit it.