Edit:

A workaround for the issue has been found. I tested it and it works.

https://sonucais.newgrounds.com/news/post/1137244

Hey everyone, the Newgrounds player is having a few issues and is being worked on. In the meantime you can download a .exe version of the game here

https://mega.nz/file/T3pQWTAI#d1Ixn3kIw6rCuDWAqL45kR4KZ8l3W39fukCS1R-89Q4