This is so dumb. Almost no information was given and you're taking an unneeded amount of testers, along with that people don't even know what they're testing.
It's a bit stupid to hide it, what're you trying to do? Build hype through hiding something? Personally, and in my honest opinion I'd rather see what I was working with.
I can't imagine this being very good either, depending the way you approach it.
edit: errors