You need to be creative and a little brave or else people will just get bored.
Don't mind sharing a couple of moves with you from my display days (mainly in Hu500 but also with B412 and A109MKII):
Rear Start Opening
Carry out a backwards (cockpit facing away from crowd and traveling in direction towards crowd) take off (after checking all clear). Gradually increase height and speed. Gain maxium allowable rearward flight speed. Push nose forward and initiate 'tail climb'. At top of tail climb, vertically align aircraft, as aircraft begins to fall initiate right or left cyclic turn while in vertical dive and pull up to enter the display facing the crowd head on. Execute left or right turn to run parallel to crowd to start display sequence.
Corkscrew Climb and Humpback Bunt
At some point during display build in a high speed run and enter a vertical climb. As soon as aircraft is vertically aligned begin high rate cyclic roll while remaining in vertical climb. As vertical momentum slows align aircraft to desired position in relation to crowd and introduce gradual collective while at the same time instigating forward cyclic. This will raise the tail, cause the aircraft to become level and allow the tail to keep rising (humpback). Reduce collective (marginally) and maintain forward cyclic until aircraft enters a vertical bunt (facing the ground). Conduct one or more cyclic rolls during vertical bunt to bring the aircraft out in desired direction.
Twist Away
Depending on how much power the 135 has available, consider a 'Twist Away' finish to the performance. Maximum rate collective climb from hover with simultaneous maximum rate pedal turn. After reaching target height gradually reduce collective then pedal and either dive or roll aircraft away in desired direction.
HM