Nope. You can't regen health.

Come on. You can do it.

Don't be a wuss.

If it's really hard for you, continue slowly through the map, and every couple of seconds you go without losing any health, press F5 (quick save). The instant you lose health, press F9 (load quick save) to reload your previous quick save.

This method will assure you'll EVENTUALLY get past any levels you are having trouble with.

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American...I like American. Steamboat Willy, toot-toot.

Nooo! Please! I like American! Fancy Shmancy. What a cinch. Go fly a kite. Cat got your tongue? Colored beans! Betty boop, what a dish. Betty Grable, nice gams.

I say can you see? I say can you see? I....I say...

Fuck hitler. FUCK HITLER!

Shut up with that filthy pig latin!