I did Hole in One on Chapter 6 Level 10 at 3x speed. Send all 4 trains through the green speed up mechanism, and then direct them straight toward the big hole on the right edge of the screen. I did Stairway Stumble on Chapter 7 Level 4 at 7x speed or lower. (8x speed and 10x speed doesn't work, 9x speed worked 1 time for me). Keep feeding the duplicator with trains by looping trains from the right side output into the duplicator while the left side output goes straight towards the stairs until the collec...

Is the Train Pong Floppy disk in the DLC? Because I can't find it anywhere in the base game.

i've finished all the chapters and the bonus stages, i just haven't done the DLC stages, but i haven't gotten the achievement... Do I need the DLC?

It's impossible to finish it in 76 moves, and your own hint doesn't work. I think the sequence is wrong, it should be 'red yellow green ......' instead of 'red green yellow .....'.

The game was working fine before. Now it fails to go full screen and flickers.