>>6477570I was told a pen, or a AA battery would work for the basic transformation, if using a pen apply pressure so it doesn't snap in half when doing the planet side shift/head and shoulder shifter and you only need to press the pen in to rotate the sides of the legs as WHILE HOLDING THE PEN IN AT THE VERY CENTER you can rotate them with a free hand.
A thick pen (or mentioned battery) like pic related works best, as long as the tiny button in the center of each keyhole is pressed as you do the slide functions it'll work, infact try to avoid using a ballpoint pen, the tip of mine broke and nearly shattered one doing a test run