Unfortunately, it is currently impossible to play audio files in Repl.it because of the way it works.
Please upvote this comment if it was helpful or useful in any way
Creating and developing changed my entire life. Not only do I have a new perspective on existence, but I learned about stuff.
That number is the amount of cycles you have. Cycles are basically Repl.it's equivalent of karma, it goes up every time someone upvotes your posts or comments.
You can see it in action if you upvote my comment and reload the page ;)
Guess you'll have to wait and see ;)
Repl.it competitions usually are only announced within a week of it starting, so the admins most likely won't say.
Please mark my comment as the answer if it helped you. Thanks