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.

Execution · Practiced Mastery
Big Daddy POV return to Rapture with tighter combat systems.

Execution · Practiced Mastery
A kart racer testing basic driving and item management.
BioShock 2 leans Execution (Practiced Mastery); Crazy Frog Racer 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.
BioShock 2
Dual-wield drill and gun timing matter.
Crazy Frog Racer
Steering and drifting need some precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Splicer AI scripted, not adaptive.
Crazy Frog Racer
AI racers follow scripted lines
Crazy Frog Racer leans a little harder on variance, though the gap is small.
BioShock 2
Sister-gathering waves add randomness.
Crazy Frog Racer
Item pickups and rubber-banding add chance
BioShock 2 leans a little harder on optimization, though the gap is small.
BioShock 2
Plasmid combos and gear loadouts solvable.
Crazy Frog Racer
Track learning and item use are shallow but present
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.