Other modes appear to be working for me, but when I choose "Championship," the game immediately quits out (crashes, I assume). 100% repro for me. Known bug?
...
loaded music[2: music/Vektor2089-Darband_Grand_Prix.ogg
sfx: 255
drawHUD: true
Error: unhandled exception: cannot read from file: assets/championships.json [IOError]
closing audio
sdl2 quit
Played through a handful of single courses this morning - super fun game!!! I'll surely be playing through all of the tracks, thanks for including this is The Bundle!