You need unity to be able to open the source files.
Unzip the file and choose where to save it to.
Open unity and choose to open a new project.
Click the unzipped folder ONCE. Do not open it! Press ok.
After the project compiles, you should be able to play it and make the changes to it that you want.
Programmers: Kaya Karlsen, Paul Wilhelmsen, Magnus Sigvartsen
Visual effects and some art: Magnus Sigvartsen, Paul Wilhelmsen
Idea and some art: Hedda Kverndalen, Frida Evelyn Arntsen