Seed of Chucky ending explained (spoilers)

[harry]

Jennifer has twins. Chucky names them Glen and Glenda. The police enter Jennifer's house and find the bodies of Joan, Redman, and Jennifer's driver. at the hospital, Jennifer is deemed mentally incompetant to take care of her babies. Tiffany and Glen are under Jennifer's hospital bed. Tiffany tries to switch bodies with Jennifer. Just moments after Tiffany finishes the chant, Chucky bursts in the hospital room and puts an ax into Tiffany's head. Jennifer tosses the ax to Glen. Glen chops Chucky's arms and legs off. Chucky tells Glen that he's always been proud of his son. Glen chops Chucky's head off. 5 years later, Jennifer's new assistant is telling her that she does not like Glenda and she quits. Jennifer takes the Tiffany doll off of her mantle and bashes the assistants head in with it. Tiffany has completed the switch and it was Jennifer who died in the hospital. Outside it's the twin's birthday party and Jennifer hands Glen a box and says that the card on it is blank. Glen takes it to a table and opens it. Inside is Chucky's arm. After Glen wets his pants, the arm flies out of the box. We are left with the cast being read off with their death scenes.