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.

Optimization · Practiced Mastery
The original loot-driven co-op shooter set on the bandit world of Pandora.

Execution · Practiced Mastery
A marble-shooter testing aim and color-chain planning against falling orbs.
Borderlands leans Optimization (Practiced Mastery); Sparkle Unleashed leans Execution (Practiced Mastery).
Sparkle Unleashed leans a little harder on execution, though the gap is small.
Borderlands
Standard FPS aim; numbers matter more than precision
Sparkle Unleashed
Aiming and timing orb shots before they fall matters
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands
Bandits and skags are scripted
Sparkle Unleashed
Solo arcade puzzle with no opponent to model
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands
Procedural loot drops gate your power
Sparkle Unleashed
Incoming orb colors arrive with some randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands
Builds, gear math, and farming routes dominate
Sparkle Unleashed
Chaining matches and powerup use is the strategic layer
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.