He also grabbed seven rebounds to go along with five assists, keeping his team close for long stretches by contorting his body for acrobatic layups and off-balance jumpers.
He scored three times over Kelly, dunking on him once and contorting himself for two layups around the fellow Raleigh native, on his way to 16 points in the opening 20 minutes.
Halliday's opener came in the 44th minute when the Glens man contorting himself superbly to hook the ball home after a frantic scramble in the Linfield six-yard box involving Willo McDonagh and Darren Lockhart.
Parts of all this went into the making of him, as well as the imaginings of the young Marcel Marceau, in Strasbourg in the 1930s, trying on his father's long trousers and contorting his body to make his friends laugh.