hammerX - u just got yourself a warning, not only is what u said spam , and totally offtopic, that type of language is not allowed here :\
Helge, to transform u first need a high powerlvl, this powerlvl is different for each character, u can read that in the character select screen, also u can read your powerlvl in the blue bar. You can also see in the top bar if ur able to transform (next to the box where you can see what attack you use) if that one is full you are able to transform. If all the requirements are met, just press Z by deflaut and you transform
good luck
grtz Naz