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

Optimization · Practiced Mastery
A serene co-op puzzle platformer where two blobs flip across a gravity-split world together.

Optimization · Practiced Mastery
Acrobatic puzzle-platformer where rewinding time turns every fatal mistake into a do-over.
ibb & obb leans Optimization (Practiced Mastery); Prince of Persia: The Sands of Time leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
ibb & obb
Synchronised jumps across gravity boundaries need timing
Prince of Persia: The Sands of Time
Acrobatic platforming chains need timing; rewind softens failure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ibb & obb
Pure cooperative puzzle, no adversary
Prince of Persia: The Sands of Time
Sand creatures attack on fixed cues
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
ibb & obb
Everything is deterministic
Prince of Persia: The Sands of Time
Rewind power removes most consequence of surprise
ibb & obb leans a little harder on optimization, though the gap is small.
ibb & obb
Solving the dual-gravity puzzles is the real game
Prince of Persia: The Sands of Time
Route reading and dagger resource management solve each room
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.