How about limiting the time stamping?

Rule 1: It does not start until WWTW is created

Rule 2: The frame stamps allowed is limited to about 20. Those who increase must be computer daredevils.

well i Have another idea. when you press ctrl z, it goes back. but only once. WHAT THE HECK,NOT THE BEST WAY. so why dont you make it so that you can just go back any amount of times, and not ONE????!!!

Lately I've heard Catelite suggesting that we need to think up of interesting/crazy elements to get them in, so here's another thing to add.

When WWTW explodes it creates a gravitational field which expands like gbmb then keeps expanding, untill it reaches the edges of the screen. Once the field gets to the end of the screen, it could loop to the other side, then continue on forever causing havoc untill the simulation it reloaded. :P