It simple but it works fine, here are a list of suggestion that came to my mind while playing :
- music, with a game concept like that you absolutely need some kind of silly background music, i see you are using godot, ovani sound plugin would allow you to easily setup music with intensity levels so the music intensity could increase when someones close to win
- the font, its really hard for me to read the font, you can probably improve that
- i had slugs that had some insane speed increase sometimes, don't know if it was a bug or a sprint. If it was a sprint, you could add some visual to the slug (at least modulating it in red or whatever)
- Im betting points but i don't know how many i have in total
- if you want to expend the concept a bit further : give us an ecury to manage so we have our slugs, we can train them, feed them for stats,
- give abilities the player can use to affect the race
But overall, good job and nice idea :)