The Power of Core Concepts in Spelunky

Zach: It's one of those ideas where you know like I said with spelunky one, their ideas that just as soon as you I heard them they, or as soon as I thought of them, or whatever it's just they made sense. And yeah it's worked out great and it's a real joy for me to work on is just that it started with these sort of core concepts and they've been so rich and fertile for other ideas,. To kind of add to it and connect to it.