He went on vacation to a tropical island to relax and get over his depression. Bad idea!! On his return, Bikini Joe Ld is not only still down but meaner than ever before and he’s got a few more tricks up his sleeve. Help the Freaks get Clint City laughing again (with the help of a few custard pies, if needs be).Bikini Joe Ld is a legendary character who is only available by carrying out missions associated with him. To obtain this character, you must unlock his last mission before January 8th, 2012.
I've noticed that you're missing one legendary mission called "Passing depression" both on the purple rectangle on the side and when you hover over bikini joe in the Legendary Mission section. I found that mission only on the results page at the end of a battle and on the full mission list.