head to head
Jetpack Joyride asks more than Don't Scream, and the gap is execution.

Variance · Pure Chaos
A microphone-gimmick horror walk testing vocal composure against randomised scares.

Execution · Twitch Chaos
An endless runner where you steer a jetpack through randomised hazard corridors.
Don't Scream leans Variance (Pure Chaos); Jetpack Joyride leans Execution (Twitch Chaos).
Jetpack Joyride leans clearly harder on execution.
Don't Scream
Keeping your voice steady is the only physical test
Jetpack Joyride
One-touch dodging at rising speed is the whole test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Don't Scream
Scares are randomised triggers, not an adaptive mind
Jetpack Joyride
No opponent of any kind
Don't Scream leans a little harder on variance, though the gap is small.
Don't Scream
Dynamic scare placement makes every walk unpredictable
Jetpack Joyride
Randomised obstacle layouts and power-up spawns each run
Jetpack Joyride leans a little harder on optimization, though the gap is small.
Don't Scream
Little to solve - composure, not strategy, is tested
Jetpack Joyride
Mission and gadget choices matter mildly
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.