(PSP) Onore no Shinzuru Michi wo Yuke

Action game with puzzle elements developed by Silicon Studio and published by From Software on PSP in 2009.
The game uses an isometric perspective and the main character is a ninja who has to go through several stages and solving puzzles. As a ninja, he can replicate himself so based on how many ninja can be used in a specific stage, every 60 seconds a new ninja will be summoned. Using different ninjas can solve problems that a single one could not do, for example a door is unlocked by two buttons, so the first two ninjas are used to push each button and then the third ninja can enter the door and go to the next stage.
The game is graphically based on Ukiyo-e, a Japanese painting style, from the whole stage and the background to various enemies and objects with a totally inspired soundtrack.
Released only in Japan.