head to head
vs
Box Boy! + Box Girl!vsPortal 2
Box Boy! + Box Girl! leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Box Boy! + Box Girl!Portal 2
Axis by axis
Execution3 vs 3
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 0
Box Boy! + Box Girl! leans harder on variance: Every level is fully visible and deterministic
Optimization8 vs 9
Portal 2 leans harder on optimization: Solving the puzzle's logic IS the entire game.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.