Roaches just can't seem to die. I actually tried this for alot of times and yet it's still alive.
Apparently, roaches don't suffer in the microwave oven as much as you'd think. It is true that the radiation emitted in a microwave oven is specially tuned to cause water molecules to vibrate. The vibration of water molecules in your intended food items causes friction, from whence you get heat. Cockroaches, it turns out, have very little body water, so it appears that a cockroach can survive a longer amount of time in your standard microwave oven than you or I could.