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

Execution · Pure Mechanics
A run-and-gun arcade shooter that is almost pure twitch execution.

Execution · Pure Mechanics
Tests split-attention execution - typing accurately while dodging scripted bullet hell.
Metal Slug 5 leans Execution (Pure Mechanics); The Textorcist: The Story of Ray Bibbia 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.
Metal Slug 5
precise dodge/shoot run-and-gun demands
The Textorcist: The Story of Ray Bibbia
Typing exorcisms while dodging bullets is a pure split-brain test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Slug 5
enemy waves are fully scripted patterns
The Textorcist: The Story of Ray Bibbia
Boss patterns are scripted, never adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Slug 5
minor drop and spawn randomness
The Textorcist: The Story of Ray Bibbia
Patterns are fixed once learned
The Textorcist: The Story of Ray Bibbia leans a little harder on optimization, though the gap is small.
Metal Slug 5
weapon pickup and route memorization
The Textorcist: The Story of Ray Bibbia
Memorising bullet patterns and prayer text aids consistency
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.