The Evil Laugh Generator
Oh you evil, maniacal, sinister genius you! You have just succeeded in almost-but-not-quite blowing up your arch nemesis, the do-gooding superhero Bigtoughmanman! This is the closest you have come yet! Fantastic! You know you have but a few precious seconds to gloat over you victory before Bigtoughmanman escapes from the rubble to do battle with you once again!
You must make these seconds count! You call upon your most evil, most sinister, most diabolical laugh. What does it sound like?