With browser, I know things can take a little while to load in! Perhaps letting it cook for a little can get rid of the issue! If you tried this already, then I'll have to think further on solutions!
Ok, I'm here again and I'm so sorry for replying so late. It works - I can see now and luckily it was a simple fix. I just needed to download the game, so I was right that the browser made the whole screen black... the thing is, I apperently played the whole game BLIND without knowing it. I thought it was good without 90% of the visuals on. I couldn't see Seb's face until I played it the second time!
Short of it is that my browser messed up the game, downloaded the actual game and it was super entertaining! Keep the hard work, I can't wait to see more for this game. Hope I wasn't a nuisance :P