Building comparison
head to head
Half-Life: SourcevsSonic Advance
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.
Half-Life: Source
Execution · Practiced Mastery
Aim and movement through a fully scripted campaign that route knowledge solves.
Sonic Advance
Execution · Practiced Mastery
Sonic's handheld return to classic 2D form with four playable characters on the Game Boy Advance.
Half-Life: Source leans Execution (Practiced Mastery); Sonic Advance leans Execution (Practiced Mastery).
Half-Life: SourceSonic Advance
Axis by axis
Execution6 vs 6
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Source
Aim, movement and platforming through Black Mesa's gauntlets
Sonic Advance
GBA speedrunning lines demand crisp inputs
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Source
Marines and aliens run impressive but fixed scripts
Sonic Advance
All scripted opposition
Variance1 vs 1
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Source
Fully authored campaign, nothing random
Sonic Advance
Special spring spots hidden at first
Optimization5 vs 5
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Source
Route knowledge and resource management trivialise replays
Sonic Advance
Character routes and emerald hunting are mappable
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.