Assuming you have found a verified source for the , follow this general installation path:

The "Stage Mode" follows the Shippuden storyline through the intense Pain’s Invasion arc.

Avoid untrusted third-party "free download" sites that may bundle the game with unwanted software. Installation and Compatibility

is a fan-made 2D fighting game based on the Naruto manga and anime series. It was originally built on the engine of Little Fighter 2 (LF2), a beloved freeware beat 'em up game developed by Marti Wong and Starsky Wong. The NTSD project took the LF2 engine and completely overhauled it, replacing the fantasy characters with a massive roster of Naruto characters and transforming the gameplay to mimic the ninja battles seen in the anime.

Most legitimate downloads come from private Discord communities (e.g., "Shinobi Striker Modding Hub" or "NTSD Revival Project"). These groups use —you must own a legal copy of Naruto to Boruto: Shinobi Striker on Steam. You then download a 300-400 MB patch that overwrites the vanilla files.