Zen Pinball

This one can be a bit frustrating if you're not very good at juggling the ball around on the mini playfield. Hit the bumpers until robber knights start besieging your castle. Both the dot matrix and a voice will notify you when this happens. After that, shoot the ball up the Right ramp to reach the mini playfield. Keep on hitting the lit targets without leaving the playfield until the challenge is complete and the trophy pops up.

Once this is done, you can choose to kill off the leader of the invaders like you would in any duel. If you succeed, you will be awarded with an extra ball.