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 Sega arcade brawler where collecting orbs transforms you into beast forms.

Execution · Pure Mechanics
Combo execution and dodge timing through scripted grindhouse brawls.
Altered Beast leans Execution (Pure Mechanics); Shank leans Execution (Pure Mechanics).
Shank leans a little harder on execution, though the gap is small.
Altered Beast
Punch timing in a slow brawler
Shank
Combo juggling and dodge timing carry every brawl
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Altered Beast
Enemies spawn on fixed scripts
Shank
Enemies and bosses attack on fixed patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Altered Beast
Power-up wolves always same spots
Shank
Hand-built levels with no randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Altered Beast
Short, memorisable stage routes
Shank
Weapon-swap combo routing rewards some lab work
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.