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 · Pure Optimization
Tests physics contraption engineering against fixed puzzle levels.

Optimization · Pure Optimization
A road-punk adventure whose few action beats wrap an otherwise solvable inventory puzzle core.
Bad Piggies leans Optimization (Pure Optimization); Full Throttle leans Optimization (Pure Optimization).
Full Throttle leans a little harder on execution, though the gap is small.
Bad Piggies
Light steering of contraptions after building
Full Throttle
Biker brawl sequences require basic timing not found elsewhere
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
No opponent of any kind
Full Throttle
Linear story with scripted antagonists and no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
Levels are fixed and repeatable
Full Throttle
Minimal randomness; world state is tightly authored
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
Contraption engineering for three-star solutions is the game
Full Throttle
Puzzle solutions are fixed and discoverable through systematic exploration
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.