head to head
Wii Play asks more than Hong Kong 97, and the gap is reads.

Execution · Twitch Chaos
A notoriously broken shooter testing nothing but tolerance and basic bullet dodging.

Execution · Pure Mechanics
Nine pointer-driven minigames bundled with a Wii Remote, from duck-hunt shooting to table tennis.
Hong Kong 97 leans Execution (Twitch Chaos); Wii Play leans Execution (Pure Mechanics).
Wii Play leans a little harder on execution, though the gap is small.
Hong Kong 97
Dodging bullet spam with one-hit deaths is the only skill present
Wii Play
Pointer aim and timing carry shooting and ping-pong games
Wii Play leans clearly harder on reads.
Hong Kong 97
Enemies spawn in mindless waves
Wii Play
Two-player duels add slight mutual prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hong Kong 97
Spawn patterns have slight randomness
Wii Play
Find Mii crowds and target spawns randomise lightly
Wii Play leans a little harder on optimization, though the gap is small.
Hong Kong 97
There is almost no system to optimise
Wii Play
Minigames are too shallow to deeply optimise
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.