Once you get a game over, you can see how far you've ran, which counts as an informal scoring system.
Though I understand this could be expanded on!
Viewing post in Tenchou's Deadline Dash! jam comments
I did realize this after I wrote the review. I probably lost too much focus as it was late and I was quitting out the game over screen fast but I did recall seeing how far you went and just forgot about that, so my bad on that. I do agree though that something more formal would be cool too. Thank you for replying!