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.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.

Execution · Pure Mechanics
A Tetris variant collection testing placement speed across multiple rule sets.
Super Mario Odyssey leans Execution (Pure Mechanics); Super Tetris 3 leans Execution (Pure Mechanics).
Super Tetris 3 leans a little harder on execution, though the gap is small.
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Super Tetris 3
Precise piece placement under accelerating speed is everything
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario Odyssey
No adaptive opponents whatsoever.
Super Tetris 3
Solo, no opponent to predict in standard modes
Super Tetris 3 leans a little harder on variance, though the gap is small.
Super Mario Odyssey
Almost no randomness in level design.
Super Tetris 3
Piece sequence is random but bounded and mappable
Super Mario Odyssey leans a little harder on optimization, though the gap is small.
Super Mario Odyssey
Moon routes and movement tech learnable.
Super Tetris 3
Stacking strategy has known optimal patterns
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.