Cool game!
Love the graphics style and that it supports as many players as the keyboard can handle. I could see myself hook this up to a makey makey ( https://makeymakey.com/ ) for a game night. Would need to have some kind of win condition though...
Here are some suggestions for future development:
Win conditions:
Option 1: When a timer runs out the player with the highest current score wins.
Option 2: Configurable number of respawns. Last player standing wins.
Controls:
For more control of the steering, the direction could switch everytime the key is pressed.
Additional keys:
Would be nice to have the numeric keys work as well. If I hook up makey makeys it'd be good to use 1,2,3,4,5 for players 1-5.
Keep up the good work!