#ICYMI: German robo-operas, pan-Pacific battle mechs and more

Today on In Case You Missed It: A German opera company's new lead for My Square Lady is a singing, dancing robot; MegaBot, America's first battle mech, just challenged its Japanese counterpart to a duel and a handheld pressure washer, dubbed the Loogun, scours poo (or, in this case, some exceedingly clingy Vegemite) from your toilet bowl so you don't have to.
From the cutting room floor: NASA debuted a prototype glider called the Prandtl-m (Preliminary Research Aerodynamic Design to Land on Mars) that could be cruising the skies of Mars sometime within the next decade. Good luck pronouncing that acronym.
Let the team at Engadget know about any interesting stories or videos you stumble across by using the #ICYMI hashtag @engadget or @mskerryd.
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•“In Case You Missed It” (aka #ICYMI) is a daily clip show designed to dig up the offbeat and interesting stories that get buried by the biggest headlines. We'll bring you space and tech news, as well as internet lifestyle funk, and we'll round out each week's show with a headline blast to bring you the big stories you might have missed.
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