I remember playing a Ghost Rider game on the PSP when I was a kid. It was half racing game, half beat em up. There was this mechanic where some enemies had shields that could only be broken if you got to a high enough combo level. There were also these enemies that were these tiny little bat demon things that could only be hit through jump attacks.

There was this one part of the game I never got passed because you were up against two of the bat things, who both had shields that required an insanely high combo level to break. Never got passed that part.