У вашего броузера проблема в совместимости с HTML5
SECRET ENEMY EASTER EGG? Thing?
-Secret enemy on the bridge of evil (train stage)
-can only reach him when returning to the stage, not the first time through, for.. well, you'll see.
-To find this guy, head through the first train car and enter the one with all the seats. You should be able to find a seat pretty soon, it's right inside the first seating car. Sit down and the camera will zoom out the window.
-Now just wait. It takes a while.
-KUNEKUNE is a nasty Yokai that curses and damages you as long as it's looking at you. If you have INVERT that's a good way to avoid it's gaze, but otherwise just try and get behind it. It doesn't have THAT MUCH HP, so as long as you can stay behind it, you'll be okay.
-I just used OD's STANDSTILL to deal with this guy, but you probably don't need to go that far.