Five bands can be a lot to endure if you're not an underage ball of hormonal energy, but this show will be well worth it. Not only for the variety of opening acts—from Flexions' brooding tropical dub to Strong Killings' classic punk/hardcore to Shearing Pinx's arty thrash to the Raggedy Ann's rural rock—but for headliners Japanther, whose fuzzed-out sing-along anthems and unrelenting blasts of bass and drums can invigorate even the most past-their-prime punks. (The Vera Project, Seattle Center, 956-8372. 7:30 pm, $9/$8, all ages.)