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
Sequel that adds a mother-daughter pair to its impossible-architecture puzzles.

Optimization · Pure Optimization
Tests creative vocabulary - conjuring the right modified object for each fixed puzzle.
Monument Valley 2 leans Optimization (Pure Optimization); Super Scribblenauts leans Optimization (Pure Optimization).
Super Scribblenauts leans a little harder on execution, though the gap is small.
Monument Valley 2
Gentle touch controls, no reflexes
Super Scribblenauts
Stylus control matters slightly, never decisively
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Monument Valley 2
Nothing opposes you
Super Scribblenauts
Solo sandbox - nothing models you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Monument Valley 2
Deterministic authored levels
Super Scribblenauts
Puzzles are fixed; your vocabulary is the only variable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Monument Valley 2
Geometry manipulation puzzles with intended solutions
Super Scribblenauts
Finding object-adjective combos that satisfy each puzzle is the game
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.