Now for the game:
One should be free from giddiness definitely. The goal is a bullet through one, it seems to me, to draw random path without side boundary. Here you can sometimes jump off the train and play later on. But be careful do not fall too deep because otherwise the game ends. The further you get the more points ... That's all.
No settings, no menus. Ball down and have fun ...
Controlled by the way, with left and right arrows, it should interest anyone.