So, my good friend twitch.tv/FrostedPears done some digging around the coding of this game. Heres what he found!!

The coin changes position every 11 frames, it follows the following pattern:

                  A52B61C72D83
                   E941A52B61C*

What does this mean? Well, there are 16 doors in the bonus stage. From Left to right:

     0 1 2 3 4 5 6 7 8 9 A B C D E F

So if the coin was in door 7, 11 frame later it would be in door 2. 60 frames per second, so do the maths... I have found, through 2 hours trying tonight, that directly after a reset, count 6, and on 6 start the game, and 4 times out of 10 the coin will be in the centre, door 8, exactly where you want it. In 1325 attempts i got the coin 9 times, tonight alone i have got it 4 times .. and when im off, its only by 0.18 seconds, or 11 frames. So this 6 second buffer, + consistency should improve the coin chances. Its not guaranteed, but its more than we previously knew. For me, i aim to hit the last door / wall in a stage as below: Stage 1: 15 seconds Stage 2: 35 seconds Stage 3: 1.10 Stage 4: 1.35/36.. Pause buffer as fast as possible on stage 2,3,4 and bonus, and with a bit of luck, you'll get the coin more than ever. Again, massive thanks to @FrostedPear on twitch. Follow him, hes a genius. Deadguy