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.

Optimization · Practiced Mastery
Trial-and-error memorisation of fixed death sequences, then executing the learned solution precisely.

Execution · Practiced Mastery
Greedy platformer where Wario charges through Kitchen Island hoarding coins and treasure.
Out of This World leans Optimization (Practiced Mastery); Wario Land: Super Mario Land 3 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.
Out of This World
Precise jump and laser timing within tight scripted windows
Wario Land: Super Mario Land 3
Platforming jumps and shoulder-charge timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Out of This World
Every threat is a fixed script, never adapting
Wario Land: Super Mario Land 3
Entirely scripted single-player levels
Out of This World leans a little harder on variance, though the gap is small.
Out of This World
Deaths come from unknown scripted traps until memorised
Wario Land: Super Mario Land 3
Hidden exits and treasures unknown on first play
Out of This World leans a little harder on optimization, though the gap is small.
Out of This World
The game is solved by mapping each screen's exact sequence
Wario Land: Super Mario Land 3
Coin hoarding and treasure routing drive the best ending
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.