Percy Penguin (1984)(Superior Software)
Percy Penguin (1984)(Superior Software-Acornsoft)[a]
Percy Penguin (1984)(Superior Software-Acornsoft)
Percy Penguin (1984)(Superior Software)[a2]
Percy Penguin (1984)(J.D. Llewellyn)[h TSTH][bootfile]
Percy Penguin (1984)(J.D. Llewellyn)[PERLOAD Start]