It's a fairly localized explosion, to be sure. The other rooms don't seem too affected. The fire alarms go off. And out of the doorway, ramrod straight as ever, walks Gus Fring. The camera is to his left, and he looks dazed. But ... somehow alive. Well...? The camera moves to take a more direct view of Gus. And that's when we see that THE ENTIRE RIGHT SIDE OF HIS HEAD has been blown off. Giant gaping eye-hole in his skull and everything. It is SO GROSS and the perfect end to a superhuman like Gus. Am I sad that fucking Tio (much less fucking Walt) got the last laugh on Gus? You bet. But that's life in the meth biz. Goodnight, sweet prince of pollo.