AWESOME!
I think I get what's going on (probably not). The dude that controls Purple Triangle/Pyramid Tofuzilla is kind of like a recruiter for the "TOFUZILLA Fighting League" and he saw Main Character Dude defeat Yellow Square/Cube Tofuzilla so Recruiter Dude thought Main Character Dude was worthy of having his own Blue Circle/Sphere Tofuzilla, but Main Character Dude didn't understand and attacked Recruiter Dude thinking that he was under attack himself. After driving Recruiter Dude off he goes to check if Yellow Square/Cube Tofuzilla had a pilot as well and sure enough it did! Anyways that's what I got from watching this awesome FBF and I can't wait for the third one!