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 cinematic side-scrolling shooter about a revolutionary chicken commando.

Execution · Practiced Mastery
Mid-demand 3D platforming execution across fixed gravity puzzles.
Rocketbirds: Hardboiled Chicken 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.
Rocketbirds: Hardboiled Chicken
platforming and shooting precision needed
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.
Rocketbirds: Hardboiled Chicken
scripted enemy AI, not adaptive
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.
Rocketbirds: Hardboiled Chicken
minimal randomness
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.
Rocketbirds: Hardboiled Chicken
level routing and weapon use
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.