That's a really tough question there! At first I thought that health regen is sort of a sissy thing, but then again I myself am used to that now! Looking back at it, today I was writing a post about games released in 2001 and remembered playing Serious Sam (just the first example that pupped up) and the sense of danger was real,when in more recent games I would rather hide behind a rock and wait for my health to be back to acceptable values.