If by enjoyable you mean you want to be OP early on, pick tonfas and unlock pulverize (Man, since mid stance is the best). Then from Shiftling get one of the things that add elemental damage to certain skills. I like water but you'll probably unlock lightning eventually anyway since it's on the way to other important stuff. Go into skill setup and add arcana: water to the pulverize (or it might say demon dance, I can't remember for sure) skill.
That takes care of the first element. For the second just pick the little monkey dude as your spirit, and make sure that you have enough stats to unlock the purity effect on strong attacks. To use it, just spam triangle triangle triangle R1 and then mash square to demon dance. That will apply both purity and water, which will trigger confuse (what used to be called discord) and give the enemy vastly reduced ki and ki regen, as well as make them take double damage.
If you want to completely trivialize the game, start out with the build above, and then respec to full dex when you can unlock the second tier of ninjutsu skills. You'll need at least 30k points to do the dojo missions, which should give you enough skill ups to take all the good kunai stuff and start working on the left side where the new abilities (the ones that do ungodly amounts of damage to enemies with their ki depleted).