The page of the game gives an error. Have you by any chance left it as a draft, maybe?
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Now that I've played it, I can say that it's quite a nice game! The biggest complaints I can come up with is that in some of the levels seeing the flag is very difficult (or it's directly not visible at the start), and that I think the main the game mechanic is not well explained. When you die you jump faster, I think? But I'm not sure.
Even with this, the game is simple, yet nice built. It's a good basis for a platformer if you tweaked some things and added more levels :)