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
A test of fast, precise shooting and map navigation against scripted but relentless enemies.

Execution · Pure Mechanics
A bullet-hell shmup testing dodging precision and scoring optimisation against fixed patterns.
Doom (1993) leans Execution (Pure Mechanics); eXceed Gun Bullet Children leans Execution (Pure Mechanics).
eXceed Gun Bullet Children leans a little harder on execution, though the gap is small.
Doom (1993)
Precise movement and shooting against relentless enemy pressure
eXceed Gun Bullet Children
Weaving through dense bullet patterns is the whole test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Doom (1993)
Enemies follow scripted patrol and attack patterns, not adaptive
eXceed Gun Bullet Children
Solo bullet hell, no adaptive opponent
Doom (1993) leans a little harder on variance, though the gap is small.
Doom (1993)
Enemy placement is fixed but unknown on first run through levels
eXceed Gun Bullet Children
Patterns are fixed and memorisable, not random
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Doom (1993)
Level routing and resource management determine survival efficiency
eXceed Gun Bullet Children
Scoring systems and weapon choice reward optimisation
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.