>> after a quick burger lunch, miles has one final task, do battle with the penguin, and rescue the san francisco giants' mascot, lucille. it's been a long day, and miles is exhausted. but he doesn't give up. >> the chemo port had just been taken out of his arm like a month earlier. and even though the day was for him, i even think that he got that it was bigger than miles. so he summoned the courage to keep it going for the rest of us. so, i mean, that's what batman does. >> i'm convinced miles was batman that day. and i think he's convinced. >> good job, bat kid. >> i'd like to think that san francisco made that even more amazing for him. >> i want to thank the bat kid for saving our city! [ cheers and applause ] >> after a day of fighting bad guys, batman and bat kid head downtown to receive a key to the city from the mayor. the crowd has grown to an