Poulin's goal, his 15th, sent the Flyers into the league playoffs for the 17th straight season.
Modano's 32d goal of the season gave the Stars a 2-1 lead and sent them to their fifth victory in six games.
The strange goal sent things spinning out of control.
The goal sent the Rangers into the locker room with their two-goal lead restored.
The second goal, a penalty kick, sent the Irish contingent of fans wild with delight.
Four goals in 25 minutes sent them crashing.
Jagr's 28th goal of the season sent the game into overtime, but it may have hurt the Rangers.
Another goal from Jason York as the second penalty was running out at 15:05 sent the game into overtime.
His third goal, with 2:35 left in regulation, sent the game into overtime.
The second goal sent the Islanders to the locker room trailing by 2-0.