In the first level of the Super NES edition of Battletoads, you have two parts where you're pelted with Hot Flaming Death From Above via a couple of volcanoes in the background. you have to keep moving in a zigzag pattern or they'll smack you right in the head. It's like they know where you're going to be.

Weird.

Well, they do know... sort of. It appears that the fireballs will take into account the direction and speed that you're going and land directly in your path. Sneaky.

But, if you get behind a chunk of scenery and run into it, you can trick the game into thinking you're running one direction or the other, but since you're not actually moving anywhere the fireballs will harmlessly explode right in front of you.

Just like that. This even works in two-player mode. Just make sure that both of you are on the same side of the scenery running the same direction. Otherwise you risk KOing your buddy... which might actually be pretty funny.