Oddworld: Munch's Oddysee
Your Quarma affects your ending. By doing at least 75% of the Quarma bar you will see the good ending. Anything less than 75% will get you the other ending.
Health Up With Out A Vendos:
If you are near a SOBE or Health up but your partner is the one who needs health. Drink the vendos. Exactly at the same time press the black button to switch to your partner. When done correctly life birds will rotate around your partners head.