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
House of the Dead rebuilt as a typing game where zombies die to fast accurate keystrokes.
Metal Slug 5 leans Execution (Pure Mechanics); The Typing of the Dead 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 Typing of the Dead
Raw typing speed and accuracy wins
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 Typing of the Dead
Zombies follow scripted spawns
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 Typing of the Dead
Random word prompts per zombie
Metal Slug 5 leans a little harder on optimization, though the gap is small.
Metal Slug 5
weapon pickup and route memorization
The Typing of the Dead
Spawn patterns and boss prompts memorisable
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.