Inuyasha: Secret of the Divine Jewel (Nintendo DS)
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Faster level up
This is very easy.Whenever you find Inuyasha along with the others wander around and when you find a group of 4 or more like wid hermits or something just use Inuyasha's wind scar.It gets rid of them and gives you about 50 extra experience points!
Getting other characters to attack with you
When you use an attack with any character, look on the bottom half of the screen. You will sometimes see the faces of other characters. Use the stylus to touch their face(s) and they will attack with you. Note: This uses one energy tab, and there can be only two characters that attack with you.