head to head
Mario Kart 8 Deluxe asks more than Jetpack Joyride, and the gap is reads.

Execution · Twitch Chaos
An endless runner where you steer a jetpack through randomised hazard corridors.

Execution · Twitch Chaos
A kart racer where item luck collides with optimized lines and builds.
Jetpack Joyride leans Execution (Twitch Chaos); Mario Kart 8 Deluxe leans Execution (Twitch Chaos).
Mario Kart 8 Deluxe leans clearly harder on execution.
Jetpack Joyride
One-touch dodging at rising speed is the whole test
Mario Kart 8 Deluxe
Drift boosts, snaking, and item timing demand precision.
Mario Kart 8 Deluxe leans clearly harder on reads.
Jetpack Joyride
No opponent of any kind
Mario Kart 8 Deluxe
Human racers bait and block items but mostly reactive.
Mario Kart 8 Deluxe leans a little harder on variance, though the gap is small.
Jetpack Joyride
Randomised obstacle layouts and power-up spawns each run
Mario Kart 8 Deluxe
Item distribution heavily randomized by position.
Mario Kart 8 Deluxe leans clearly harder on optimization.
Jetpack Joyride
Mission and gadget choices matter mildly
Mario Kart 8 Deluxe
Kart build, line, and shortcut knowledge define top times.
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.