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 top-down shmup testing dodging and aiming against memorizable bullet patterns.

Execution · Pure Mechanics
First-person physics platformer about leaping across a convoy of crashing trucks.
Alltynex Second leans Execution (Pure Mechanics); Clustertruck leans Execution (Pure Mechanics).
Alltynex Second leans a little harder on execution, though the gap is small.
Alltynex Second
Bullet-hell dodging and aiming are the whole skill
Clustertruck
Frame-tight jumps across moving trucks
Alltynex Second leans a little harder on reads, though the gap is small.
Alltynex Second
Bosses are fixed patterns, not adaptive
Clustertruck
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Alltynex Second
Patterns memorizable, little true randomness
Clustertruck
Physics chaos makes truck piles unpredictable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alltynex Second
Learning safe routes and sword timing optimizes survival
Clustertruck
Route lines and ability use for speedruns
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.