i was just skimming over the chapters where naruto trains for the rasengan....and jiraiya says something about rasengan being one of the 6th level jutsus? like, the second strongest i think.....

anyone else hear anything about these jutsu levels? i remember haku saying stuff like "a fire jutsu of THAT LEVEL wont be enough" or itachi saying "genjustu of THAT LEVEL cant beat me"