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

Execution · Practiced Mastery
Retro ninja platformer that flips from linear levels into a time-hopping metroidvania.

Execution · Practiced Mastery
A Space Invaders descendant testing arcade aim plus an upgrade-economy layer.
The Messenger leans Execution (Practiced Mastery); Titan Attacks! leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
The Messenger
cloudstep chains demand precise aerial control
Titan Attacks!
Dodging fire while sniping descending waves is pure arcade aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Messenger
enemies and bosses are fully scripted
Titan Attacks!
Alien waves follow fixed formations
Titan Attacks! leans a little harder on variance, though the gap is small.
The Messenger
deterministic level design
Titan Attacks!
Bounty drops and saucer timing add minor noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Messenger
upgrade economy and late-game route knowledge
Titan Attacks!
Upgrade purchases between waves form a small economy to solve
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.