head to head
vs
Bust a GroovevsTetris Effect
Bust a Groove leans Execution (Pure Mechanics); Tetris Effect leans Execution (Pure Mechanics).
Bust a GrooveTetris Effect
Axis by axis
Execution7 vs 8
Tetris Effect leans harder on execution: Piece placement under speed and Zone timing is the whole test
Reads2 vs 0
Bust a Groove leans harder on reads: Attack timing against the rival adds light prediction
Variance1 vs 2
Tetris Effect leans harder on variance: Randomised bag is bounded and quickly mappable
Optimization4 vs 4
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.