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

Execution · Pure Mechanics
The NES light-gun classic of shooting ducks and enduring the dog.

Execution · Pure Mechanics
Co-op physics party game about chaining grabbed hands across deadly gaps.
Duck Hunt leans Execution (Pure Mechanics); Heave Ho leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Duck Hunt
Pure light-gun aim and reaction speed
Heave Ho
Grip timing and swing physics under chaos
Heave Ho leans a little harder on reads, though the gap is small.
Duck Hunt
Ducks fly on simple patterns
Heave Ho
Friends sabotage, but it is party chaos
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Duck Hunt
Flight paths vary a little
Heave Ho
Physics wobble creates slapstick
Heave Ho leans a little harder on optimization, though the gap is small.
Duck Hunt
Almost nothing to optimise beyond aim
Heave Ho
Levels are short and shallow to route
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.