I made a terrible mistake in not testing the web version of this game. I'm glad you still gave it a shot. I plan on redesigning the web version of the game to work properly in the near future.
Thank you for the feedback! Unfortunately, I did not notice this issue with the window size before it was too late. Fixing this issue would require me to submit a whole new build of the game, which the rules don't allow me to do. Your suggestion of adding coyote time and a jumpbuffer will be considered for my future titles.
Really sorry about that. The game requires that you play it's 4 levels in order, however I failed to block players from entering levels that they weren't supposed to yet!
