head to head
Ace Combat: Assault HorizonvsTeenage Mutant Ninja Turtles IV: Turtles in Time
Ace Combat: Assault Horizon leans Execution (Pure Mechanics); Teenage Mutant Ninja Turtles IV: Turtles in Time leans Execution (Practiced Mastery).
Ace Combat: Assault HorizonTeenage Mutant Ninja Turtles IV: Turtles in Time
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads2 vs 1
Ace Combat: Assault Horizon leans harder on reads: Multiplayer duels add light prediction; campaign AI is scripted
Variance1 vs 1
Even - both lean on variance about the same.
Optimization4 vs 5
Teenage Mutant Ninja Turtles IV: Turtles in Time leans harder on optimization: Wave layouts and boss patterns are fully memorisable.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

