head to head
Metal Gear Rising: Revengeance asks more than Tetris DX, and the gap is optimization.

Execution · Practiced Mastery
High-speed cyborg slasher built on precise parries and slicing anything in half.

Execution · Pure Mechanics
Tests perceptual speed and motor execution under accelerating piece gravity.
Metal Gear Rising: Revengeance leans Execution (Practiced Mastery); Tetris DX leans Execution (Pure Mechanics).
Tetris DX leans a little harder on execution, though the gap is small.
Metal Gear Rising: Revengeance
parry timing and blade-mode cuts demand sharp reactions
Tetris DX
Precise placement under accelerating gravity decides every game
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Rising: Revengeance
bosses telegraph fixed patterns
Tetris DX
Solo stacking with no opponent to model
Tetris DX leans a little harder on variance, though the gap is small.
Metal Gear Rising: Revengeance
deterministic encounters
Tetris DX
Random pieces are bounded and rapidly mappable
Metal Gear Rising: Revengeance leans clearly harder on optimization.
Metal Gear Rising: Revengeance
learning movesets and upgrade priorities
Tetris DX
Stacking patterns and scoring strategy are well solved
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.