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 · Practiced Mastery
A bite-sized 3D Mario that compresses Galaxy-style level design into linear handheld courses.

Optimization · Practiced Mastery
A gentle physics puzzle-platformer starring a creature made of unraveling yarn.
Super Mario 3D Land leans Execution (Practiced Mastery); Unravel leans Optimization (Practiced Mastery).
Super Mario 3D Land leans a little harder on execution, though the gap is small.
Super Mario 3D Land
3D jumps and special-world remixes need clean control
Unravel
Gentle platforming and yarn-swing timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario 3D Land
Scripted enemies and bosses only
Unravel
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario 3D Land
Star coin locations hidden on first pass
Unravel
Everything is visible and fixed
Unravel leans a little harder on optimization, though the gap is small.
Super Mario 3D Land
Star coin collection and power-up management are solvable
Unravel
Physics puzzles with discoverable intended solutions
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.