head to head
vs
Bust-a-Move 4vsTricky Towers
Bust-a-Move 4 leans Execution (Practiced Mastery); Tricky Towers leans Execution (Pure Mechanics).
Bust-a-Move 4Tricky Towers
Axis by axis
Execution6 vs 7
Tricky Towers leans harder on execution: Placing physics bricks fast under pressure is the core test
Reads2 vs 2
Even - both lean on reads about the same.
Variance3 vs 3
Even - both lean on variance about the same.
Optimization5 vs 4
Bust-a-Move 4 leans harder on optimization: Clearing patterns and pulley setups have known solutions
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.