There is a problem, if you have two hyper bars then it'll bring out two characters and if you have three it'll bring out three. Use this to avoid most attacks. Press the LP and LK to switch the one under your base character and HP and HK to switch the third one. Poke the opponent with a Mech Arm. Hits once, then hits again.
Most people forget that it hits twice.
Use that to your advantage. This move is a great cheap attack. Lunch rush is when all the servebots come rushing. There is a minor problem that she shoots out the gun with those dots. If it connects with the gun then the hyper combo is ready to run.