Building comparison
head to head
Tenchu: Shadow AssassinsvsUndertale
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
Tenchu: Shadow Assassins
Optimization · Pure Optimization
The Wii and PSP entry reworking Tenchu into deliberate puzzle-flavored shadow stealth.
Undertale
Optimization · Pure Optimization
A scripted RPG where pattern-learning and pacifist routing carry you.
Tenchu: Shadow Assassins leans Optimization (Pure Optimization); Undertale leans Optimization (Pure Optimization).
Tenchu: Shadow AssassinsUndertale
Axis by axis
Execution4 vs 4
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Tenchu: Shadow Assassins
Simplified controls shift weight off raw dexterity
Undertale
Bullet-hell dodging in scripted patterns
Reads0 vs 1
Undertale leans a little harder on reads, though the gap is small.
Tenchu: Shadow Assassins
Guards follow rigid scripted vision cones
Undertale
NPCs follow fixed dialogue trees, not adaptive
Variance2 vs 1
Tenchu: Shadow Assassins leans a little harder on variance, though the gap is small.
Tenchu: Shadow Assassins
Little randomness once a level is scouted
Undertale
Minimal randomness in encounters
Optimization7 vs 7
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Tenchu: Shadow Assassins
Shadow paths and tool use make missions puzzle-like
Undertale
Learning fixed boss patterns and mercy routes wins
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.