head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
Capcom's infamously punishing arcade platformer that makes you beat it twice for the real ending.

Execution · Practiced Mastery
Score-attack remix of Pac-Man built around herding huge ghost trains at high speed.
Ghosts 'n Goblins leans Execution (Pure Mechanics); Pac-Man Championship Edition DX leans Execution (Practiced Mastery).
Ghosts 'n Goblins leans a little harder on execution, though the gap is small.
Ghosts 'n Goblins
Committed jumps and pixel-precise throws, no mercy
Pac-Man Championship Edition DX
Blistering speed demands frame-tight cornering
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ghosts 'n Goblins
Enemy spawns are scripted
Pac-Man Championship Edition DX
Sleeping ghosts follow deterministic trains
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ghosts 'n Goblins
Red Arremer movement adds slight noise
Pac-Man Championship Edition DX
Board layouts are fixed and learnable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Ghosts 'n Goblins
Weapon choice and route memorisation are mandatory
Pac-Man Championship Edition DX
Routing ghost trains for maximum score chains
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.