I just bought a robot pet from the waguwagu machine and according to others it should fight. but i tried to get it to attack but it does nothing but twirl like mr popo complemented him (TFS refrence) I heard if you can get it VP then it should attack but i have no idea whether its true or even how to get it VP. if anyone can help, it would really be great.

pets don't fight

no, these pets do not attack, you are getting confused with poko priests (like king piccolo) that can summon dragons that fight, you can get rings for your robot pets that allow remote access to auction house, mail and bank