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 licensed platformer testing basic jump timing and level memorisation.

Execution · Practiced Mastery
Mid-demand 3D platforming execution across fixed gravity puzzles.
Disney's Tarzan leans Execution (Practiced Mastery); Super Mario Galaxy leans Execution (Practiced Mastery).
Super Mario Galaxy leans a little harder on execution, though the gap is small.
Disney's Tarzan
Jump timing and projectile tossing carry the platforming
Super Mario Galaxy
Gravity-bending jumps need timing, though forgiving by Mario standards
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Disney's Tarzan
Jungle enemies run fixed simple patterns
Super Mario Galaxy
Bosses repeat fixed patterns - nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Disney's Tarzan
Collectible placements fixed; nothing meaningfully random
Super Mario Galaxy
Galaxies are scripted; surprises evaporate after one visit
Super Mario Galaxy leans a little harder on optimization, though the gap is small.
Disney's Tarzan
Memorising level layouts and letter locations completes it
Super Mario Galaxy
Star routes and comet challenges reward learned 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.