I believe you already posted this topic 3 times! You might get banned for that, well, so you will stop asking silly questions, the 0/100 means you've collected 0 out of the 100 gems needed to complete the level. You must collect the all the 100 needed gems, then you must find the exit. Also if someone shoots you, a few of your gems burst out from you. You must collect them again before the other player steals them.

Hope you'll find this useful, andStop posting topics!