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
First-person physics platformer about leaping across a convoy of crashing trucks.

Execution · Practiced Mastery
Retro ninja platformer that flips from linear levels into a time-hopping metroidvania.
Clustertruck leans Execution (Pure Mechanics); The Messenger leans Execution (Practiced Mastery).
Clustertruck leans a little harder on execution, though the gap is small.
Clustertruck
Frame-tight jumps across moving trucks
The Messenger
cloudstep chains demand precise aerial control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Clustertruck
No opponent
The Messenger
enemies and bosses are fully scripted
Clustertruck leans a little harder on variance, though the gap is small.
Clustertruck
Physics chaos makes truck piles unpredictable
The Messenger
deterministic level design
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Clustertruck
Route lines and ability use for speedruns
The Messenger
upgrade economy and late-game route knowledge
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.