Indeed, synchronized scaring was all the rage this year.
Proud Chicagoans Al Montoya and his wife sported Cubs colors while their team staved off elimination at Wrigley Field.
"My wife and I dressed up as Cubs players, while Jeff and Julie Petry were there as Indians players. It was really cool, even as a Chicago native."
As for Halloween itself, falling on a Monday this year, captain Max Pacioretty will be spending it with his other team away from the ice.
"We're going trick-or-treating as a family of soldiers. We'll be our own little army."
Here are some other costumes from Sunday night: