head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Modern 2D Mario platformer built on classic jump precision and hidden exits.

Execution · Practiced Mastery
Track memorisation and upgrade economy layered under straightforward racing execution.
New Super Mario Bros. leans Execution (Practiced Mastery); Top Gear 2 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.
New Super Mario Bros.
Jump timing and momentum control carry every level
Top Gear 2
Clean cornering and nitro timing decide finishing position
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
New Super Mario Bros.
Enemies follow fixed scripted patterns
Top Gear 2
AI racers follow fixed rubber-band behaviour
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
New Super Mario Bros.
Levels fully deterministic once seen
Top Gear 2
Tracks and hazards are identical every championship
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
New Super Mario Bros.
Secret exits, star coins, and route knowledge
Top Gear 2
Upgrade purchase order and track memorisation compound advantages
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.