Download file. It contains a youtube link. The video contains the game, which is playable in youtube. Just wait for the button to show up on the bottom of the screen to progress
How it works: full game time: 47 seconds. The game is cut in 3 different videos. The intro, the tutorial (jump) and the tutorial (shoot) with the ending.
Press the next recommended video as the button the tutorial asks. The 2nd recommended video comes out late, due to youtube doing it in the last 20 seconds