Killer intro!!!!!!!! I enjoyed it and the concept is straightforward. The only issue I ran into is the game renders bigger than my browser's screen at 100% zoom. Zooming to 80% fixes this issue. Great work!
glad you liked it! :D have you tried playing in fullscreen with the button on the bottom right? we ran into somme issues for the html version, where we had to use a specific resolution for the window, but entering fullscreen mode should fix it.