831789 - wires double explode

The first of 18 or so "wire" maps. These are mostly updates of old maps or parts of them, exploding traps and bridges, most of which don't work anymore. I wanted to update the original design where mice stood on buttons, and I thought this idea where mice push blocks would work well. I also tried to avoid using shaman objects (anvils) and IF (since blocks at limbo are ugly)... In this map, the buttons trigger the grounds to explode.