How to Design a Secret Room in Zelda Smash

Isaac: "I always feel like I'm playing them and then I have some sort of momentary moment where it's something interesting almost happens" He says he designed a character called a moleboom or a molegan. Those are the guys that will either run away from you or run to you. They usually spawn a troll bomb, so an already fused bomb that was going off. That was the first magic moment where I knew the game I was designing  from then on.