Tickets are available online for select Alumni games. If the game you want to attend is not listed here, check directly with the sponsoring charity.
4/27 Tri County Saints Youth Hockey
https://www.zeffy.com/en-US/ticketing/b12953cf-2720-49b7-8e92-7603f5fc32b8
4/28 CRI Knights
https://www.eventbrite.com/e/cri-knights-vs-boston-bruins-alumni-game-tickets-848830554037