Building comparison
head to head
Castlevania III: Dracula's CursevsNinja Gaiden II Black
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
Castlevania III: Dracula's Curse
Execution · Pure Mechanics
The hardest NES Castlevania, with branching routes and switchable partner characters.
Ninja Gaiden II Black
Execution · Pure Mechanics
Punishing combat execution against fast scripted enemies with deep encounter solutions.
Castlevania III: Dracula's Curse leans Execution (Pure Mechanics); Ninja Gaiden II Black leans Execution (Pure Mechanics).
Castlevania III: Dracula's CurseNinja Gaiden II Black
Axis by axis
Execution9 vs 9
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania III: Dracula's Curse
Brutal platforming and tight whip timing throughout
Ninja Gaiden II Black
Frame-tight blocking, dodging and combo routing define survival
Reads0 vs 1
Ninja Gaiden II Black leans a little harder on reads, though the gap is small.
Castlevania III: Dracula's Curse
Scripted enemies and bosses only
Ninja Gaiden II Black
Aggressive enemies still run scripted, learnable behaviour
Variance1 vs 1
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania III: Dracula's Curse
Minor enemy spawn wobble
Ninja Gaiden II Black
Encounters fixed; spawns known after one run
Optimization6 vs 6
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania III: Dracula's Curse
Partner choice, route branching, pattern memory
Ninja Gaiden II Black
Weapon choice, essence economy and encounter solutions matter
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.