Regimas and his girlfriend are cosplayers. They host a Batman Halloween party every year, and this year's theme was Arkham Asylum. They had everyone dress as a different character from the Batman universe. All the guests went the extra mile with their costumes!
Alright time for some explanation, people claimed their own characters and it was first come first serve, my girlfriend and I are cosplayers so people came to us for tips and stuff but they all made their own costumes. Then we printed the signs from the guest list and handed them out upon entry and took a photo with a DSLR. We were just as blown away as you guys are the with all the effort they put in.