head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Practiced Mastery
Kart racer whose boost-chaining drift system gives it a real execution ceiling.

Execution · Practiced Mastery
A competitive falling-blob puzzler about chaining combos faster than your opponent.
Crash Team Racing leans Execution (Practiced Mastery); Puyo Puyo! 15th Anniversary 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.
Crash Team Racing
Boost-chaining and drift timing separate skill tiers
Puyo Puyo! 15th Anniversary
Fast blob placement under pressure demands quick hands
Puyo Puyo! 15th Anniversary leans a little harder on reads, though the gap is small.
Crash Team Racing
Human races involve item baiting and blocking
Puyo Puyo! 15th Anniversary
Versus play rewards reading opponent chain timing and counters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Team Racing
Item box rolls swing positions
Puyo Puyo! 15th Anniversary
Next-piece queue is random but bounded and visible
Puyo Puyo! 15th Anniversary leans a little harder on optimization, though the gap is small.
Crash Team Racing
Shortcut routes and reserve-boost technique
Puyo Puyo! 15th Anniversary
Building large chains is a learnable scoring system
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.