Aside from KidZania, are there any other similar places within the metro that is open for private events?

Hi Janine! Why not try Fun Ranch? They have branches in BGC and Ortigas. Visit their site for more info: http://www.kidsrulehere.com/ I've attended kids parties in their Ortigas branch and it was super fun---for parents and kids, alike! Here's a link to their party packages: http://www.kidsrulehere.com/party.php?venue=ortigas