Alright spiderman...

This is a spiderman meme. The joke here is twofold: first, spiderman tells an absurd lie to the police - lies are funny, especially if they are blatantly obvious. Second, imagining a heroic character like spiderman being responsible for blowing up a retirement home is sort of funny as well - he isn't really the type of guy who would do that, so it is unexpected due to being out of character.