Prince of Persia: Warrior Within || Way to get hidden weapons/ How to get hidden weapons (Hockey Stick)?

Hockey Stick:
After going to the Centrall Hall (Past) area go down the life upgrade door. Go to the right side of the door where sands falling. Break the wall with Scorpion Sword. See what happen!! It is a Hockey Stick.
See images below.

Rotating Lever to level the ground

The ground is leveled

Going down to the life upgrade door

The wall beside the door where sands falling

Hockey Stick in the cave

Going to the Hourglass chamber.