Neither HTML nor Linux works, only the title screen shows, start and credits are not clickable.
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HTML works, you just need to go in the file and click on "project". And I haven't got Linux, so I can't fix it right now... And you can't click with mouse. You need to click with the player with space. Then you can start the game.
Edit: I updated the game page, now everyone can see how to launch the game and how the controls work (: