For the first time since his treatment started, Quinn was allowed to venture outside his home in late September. On Tuesday, the \"Mighty Quinn\" appeared at TD Garden in Boston as part of Hockey Fights Cancer Night to drop the puck before the Bruins hockey game against the San Jose Sharks.

Before the ceremonial drop, his father Jarlath Waters, said that watching the Bruins play in the Stanley Cup playoffs had helped him and Quinn get through some rough chemotherapy treatments.

\"PHOTO:
Jarlath Waters
PHOTO: After numerous treatments and months spent recovering inside from brain cancer, Quinn Waters, 3, is now cancer-free. He celebrated Halloween this year by going trick-or-treating.
>

\"We watched every game,\" Waters said Tuesday. \"The Bruins got us through some rough nights, just me and him. ... This is like a very special, healthy moment for us. ... This is our first night out as a family so it's pretty special.\"

On Thursday -- Halloween -- the Waters family were together celebrating the holiday on the outside. Quinn has no new evidence of cancer, according to his family.

The \"Mighty Quinn\" -- or Buzz Lightyear -- was finally having his moment to return his neighbors' kindness and grace to their own doorsteps with a boisterous \"Trick or treat!\"

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