Well i think you need to do this :

"

The ultimate boose run (tubs)

GMTK game jam 2019 product by yours truly.

Setup

1. install python3 and pip [ https://www.python.org/ ]
2. [Open cmd or powershell in the game directory ( On windows right click in the explorer while holding shift and selcect open powershell windows here)]
3. pip install -r requirements.txt
4. [python] src  <[your] screen width> <[your] screen height>

Configuration

conf.json in project root contains the keybindings if you wish to edit them. Game has five planets and default controls are shown each time the game is started.

"

This is taken directly from the README.md file.

It is a Python game made with pygame so you have to install python first to run it.