Video games are an artform that's so limitless. In making a game, a big part of the process is putting these limiters on the game itself, so you can … - Derek Yu

That might be the core of game design to me— making connections from every part of the game to every other part of the game. [...] I think it's been really fun to be able to do Spelunky Classic, Spelunky HD, and now, Spelunky 2. And it really feels to me like seeing the evolution of a lot of our favorite childhood franchises and seeing how they've grown up, and being inspired by that.

My worry is that as players we've grown too comfortable with being comfortable. We revel in being consumers of products, rather than contributors to a rapidly-evolving art form. [...] We've gone from asking "How does this game play?" to asking, "Does this game play the way I want it to play?"

The "joy of discovery" is one of the fundamental joys of play itself. Not just the joy of discovering secrets within the game, but also the joy of uncovering the creator's vision. It's that "Aha!" moment where it all makes sense, and behind the world the player can feel the touch of another creative mind. In order for it to be truly joyful, however, it must remain hidden from plain view— not carved as commandments into stone tablets but revealed, piece by piece, through the player's exploration of the game's rules.