This is a tool-assisted speedrun. Help the pumpkin to get whatever he needs. Moving is only possible with jumping what makes this movies pretty special because there is nonstop crazy jumping going on.
From Wikipedia:
Cauldron II: The Pumpkin Strikes Back is a computer game developed and published by British developer Palace Software (Palace) as a sequel to their 1985 title Cauldron. Learn about Cauldron II: The Pumpkin Strikes Back