Nope. Not that I know of.
Ask AiT. He'd know. I could be wrong (maybe).
"baka" will suffice for "crazy" but is really more suited for "idiot", "imbecile", "dolt", "moron", "ignoramus" and the like.
However, I have heard the westernization of crazy as "kurae(zh)ee", phoneticized and in katakana. For example, 'honma ni, aitsu wa kuraezhee' (really, that guy is crazy!) in Osaka for example....