Are you sure it's not the win screen? If you reach 80km you reach the land of the living!
Oh if 80km is victory then yeah, from UI I thought it's game over because the bar on the left didn't reach the top yet.
Oh, it's a bug that we found right after the jam's submission. It will be fix after we're able to update the game when jam's vote is closed. Thank you for the report! :)