Please give me a detailed explanation of the locations of weapons 12, 13 and 28 obtained by the male protagonist in "Castlevania: Portrait of Ruins". I would be very grateful!

Weapon No. 12 is a disk bought at a store for 8,000 yuan

Weapon No. 13 is a Guoguang weapon bought at a store for 5,000 yuan

Weapon No. 28 is Obtained from the room near the elevator on the far right side of the Tower of Death.

But you need to jump high! The gray part in the picture