Just played it for 10 minutes! Great game. One remark: to start the race, you need to select "restart level" even if you just started the game. I would suggest starting the race by simply pressing enter.
Ah, you must be entering a race from the pause menu. PICO-8 controls are arrow keys, Z, and X (emulating old school consoles with limited input options). There's a level select screen just off the title menu
Ah yes, I hit that too. Selecting "Continue" (which didn't make sense since this was my first load) just exited the menu. Didn't take me long to try "Restart" but it is a little confusing.
