head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
A high-speed auto-runner testing color-matching reflexes and jump precision.

Execution · Pure Mechanics
The SNES racer that made survival at extreme speed the entire test.
Chameleon Run leans Execution (Pure Mechanics); F-Zero leans Execution (Pure Mechanics).
Chameleon Run leans a little harder on execution, though the gap is small.
Chameleon Run
Color-switch and jump timing at speed decides everything
F-Zero
Tight cornering at speed with punishing walls
F-Zero leans a little harder on reads, though the gap is small.
Chameleon Run
Solo - no opponent to model
F-Zero
AI racers don't adapt
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Chameleon Run
Tracks are fixed and memorizable
F-Zero
Fixed tracks
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Chameleon Run
Path choice and collectible routing rewards replays
F-Zero
Boost timing and racing lines converge
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.