The Ultimate Ninja Storm sub-series, developed by CyberConnect2, was originally designed as a next-generation title. The first game in the series, Naruto: Ultimate Ninja Storm , was released in 2008 exclusively for the PlayStation 3. The PS2 could not handle the graphics engine that powered the "Storm" series, which featured expansive 3D arenas and cinematic "Ultimate Jutsu" sequences.

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If you have determined that you actually want to download Naruto Shippuden: Ultimate Ninja 5 (the closest experience to what you are looking for), there are technical factors to consider regarding the file format.

If you love fast-paced 2D anime fighters, Ultimate Ninja 5 (English patched) is the closest thing to a “Storm 6” on PS2.

However, there is a popular community project often referred to in "ISO download" posts as Naruto Shippuden: Ultimate Ninja 6 What is "Naruto Ultimate Ninja 6"? The game you are likely looking for is a modded version Naruto Shippuden: Ultimate Ninja 5 Ultimate Ninja 5