head to head
Score Rush Extended asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
A twin-stick bullet-hell shooter testing dense bullet-pattern dodging.
Half-Life 2 leans Execution (Pure Mechanics); Score Rush Extended leans Execution (Pure Mechanics).
Score Rush Extended leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Score Rush Extended
Dodging hundreds of bullets is pure twitch execution
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Score Rush Extended
Fixed bullet patterns, no adaptive opponent
Score Rush Extended leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Score Rush Extended
Patterns deterministic once memorized
Score Rush Extended leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Score Rush Extended
Scoring routes and powerup management reward planning
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.