head to head
Really Big Sky asks more than Super Mario World, and the gap is variance.

Execution · Pure Mechanics
A procedural bullet-hell shooter testing dodging and aim across endless waves.

Execution · Pure Mechanics
Precise jump execution across fixed levels with secrets to memorise.
Really Big Sky leans Execution (Pure Mechanics); Super Mario World leans Execution (Pure Mechanics).
Really Big Sky leans a little harder on execution, though the gap is small.
Really Big Sky
Dodging dense bullet hell and aiming decides survival
Super Mario World
Perfect inputs trivialise every jump, spin and cape flight
Really Big Sky leans a little harder on reads, though the gap is small.
Really Big Sky
Enemies follow scripted patterns, not adapting
Super Mario World
Scripted Koopas adapt to nothing
Really Big Sky leans clearly harder on variance.
Really Big Sky
Procedural enemy waves and hazards add chaos
Super Mario World
Levels are fixed; nothing hidden survives one playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Really Big Sky
Drill timing and upgrade choices reward planning
Super Mario World
Secret exits and route knowledge add a modest solvable layer
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.