first use the force grip on the box and throw until you run out of it . then he will do his 1 hit ko attack on you just use force speed then force push be quick while doing this you only have a few sec to do it. next use force push on the box then force grip then force lightning do this fast too. then just fight him normally like any other boss and your done! :) P.S the ending is very bad not like the one on wii.