head to head
Neither is simply harder - they are hard in different places. Grand Theft Auto V demands more reads; The World Ends with You demands more optimization.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
A stylish Shibuya action RPG where dead teens fight for a second chance at life.
Grand Theft Auto V leans Execution (Practiced Mastery); The World Ends with You leans Execution (Practiced Mastery).
The World Ends with You leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
The World Ends with You
Frantic stylus combat juggling two characters at once
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
The World Ends with You
Noise enemies use fixed attack patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Some mission and lobby randomness.
The World Ends with You
Pin drops random until rates are known
The World Ends with You leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
The World Ends with You
Pin evolution, threads, and difficulty tuning reward system mastery
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.