head to head
Serious Sam: The First EncountervsTrauma Center: Under the Knife
Serious Sam: The First Encounter leans Execution (Pure Mechanics); Trauma Center: Under the Knife leans Execution (Pure Mechanics).
Serious Sam: The First EncounterTrauma Center: Under the Knife
Axis by axis
Execution8 vs 9
Trauma Center: Under the Knife leans harder on execution: Precise stylus surgery under strict timers is everything
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization4 vs 5
Trauma Center: Under the Knife leans harder on optimization: Operation order and tool sequences are memorizable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

