#1: GYRO SLICER 2000
Just north of the hideout, you'll find your first treasure on a high column.
#2: MEDITATION TURTLE
This one is on a rooftop just north of the previous treasure.
#3: RACCOON DARUMA
An Ancestor Door guards this treasure in the northwest of the map. To reach it, you'll have to use Sly's Archer costume and fire a rope arrow - the spot is marked as (3) on the map.
#4: DRAGON CLAW STATUE
This one's also behind an Ancestor Door atop the waterfall. Use the Samurai costume to knock a fireball back and open the way.
#5: GOLDEN LION STATUE
You'll have to use both the Archer and Sabertooth costumes to reach this one - the starting point is marked as (5) on the map. Using these, you'll be able to reach the Ancestor Door far from the mapped part of the level.
#6: LUCKY NEKO
This one's on a tall column just south of the hideout.
#7: JADE SAMURAI HELMET
Head behind the geisha house to find this treasure atop a crate.
#8: TALES OF A SAMURAI HIPPO COMIC
This one hides behind another Ancestor Door. To reach it, use the Archer costume's rope arrow from atop Riochi's sushi shop. Once across, you'll need to hop on the switch and use the Thief costume's Slow Time ability to get in before the door closes.
#9: JADE PEACH
You'll find this on a crate behind the building south of the sushi shop.
#10: SAMURAI WARRIOR
Just south of the hideout are some low-altitude platforms. Drop down and use the Jailbird costume to knock the crates out of the way. Beyond is an Ancestor Door which holds another treasure.
#11: THE NINJA COOKBOOK
This guy can be found on a boat in the eastern section of the map.
#12: GOLDEN TEAPOT
The final treasure is on a low platform just north of the hideout.