I like the 8-bit music in this one and you will too because sound combos are really easy to score in this fight. Don't use any PK attacks on these guys because they have shields and regularly refurbish them if they're snatched. Have Lucas cast Shield Omega on everyone and then have him use Offense Up Omega a couple of times. You'll be strong enough to possibly wipe out 2 robots in a single turn with regular attacks if you use good sound combos. When a bot is destroyed, they'll blow up and do around 80-90 damage so remember to always keep your HP above 120 or so just in case. This can be a long fight because you have to kill 7 bots but it's not too difficult.