head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
A stylish skate-shooter where pulling tricks reloads your guns mid-combat in a deadly blood sport.

Execution · Practiced Mastery
Combo execution layered over solving each park's optimal scoring line.
Rollerdrome leans Execution (Practiced Mastery); Tony Hawk's Underground 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Rollerdrome
Trick-to-reload skating while aiming in slow motion is pure hands
Tony Hawk's Underground 2
Combo timing, balance meters and manuals demand practiced hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Rollerdrome
House Player enemies act on fixed behaviors
Tony Hawk's Underground 2
No opponent adapts; score attack is solo
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Rollerdrome
Arenas and spawns are deterministic
Tony Hawk's Underground 2
Maps and goals are fixed and fully knowable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Rollerdrome
Combo routing and kill order define high scores
Tony Hawk's Underground 2
Finding the highest-scoring line through each park is solvable
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.