Do I need the original game files to run Splatoon?

According to the project's README, no original game files are required.

Splatoon

DecompilationHalted

Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported.

About

A small project called Splatoon Decomp. The author says it is a standalone project and not the same as SDL, which they call Splatoon Decomp Lab, and mentions using Wexos Toolbox and Switch Toolbox.

What you need to run it

No original game files required, according to the project's README.

FAQ

What is Splatoon?: Splatoon is an open-source decompilation of Splatoon. Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported. The original game ran on Wii U.
Do I need the original game files to run Splatoon?: According to the project's README, no original game files are required.