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

Execution · Pure Mechanics
A punishing retro platformer where precise jump timing is everything.

Execution · Pure Mechanics
A comedic reflex platformer testing jump timing against fast obstacles.
Hudson's Adventure Island leans Execution (Pure Mechanics); Montaro : RE 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.
Hudson's Adventure Island
tight platform jumps, brutal timing windows
Montaro : RE
Reflex jumping and timing carry this runner-platformer
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hudson's Adventure Island
fixed enemy patterns, no adaptation
Montaro : RE
No adaptive opponent in a solo arcade game
Montaro : RE leans a little harder on variance, though the gap is small.
Hudson's Adventure Island
fruit/egg drops randomized
Montaro : RE
Some procedural obstacles add randomness
Hudson's Adventure Island leans a little harder on optimization, though the gap is small.
Hudson's Adventure Island
level route and skateboard memorization
Montaro : RE
Little to solve beyond reacting to obstacles
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.