Really cool entry ! I enjoyed the card system quite a lot !
The minimalist style fit very well with this genre.
The music is nice, though a bit repetitive after a while (and the honking sounds can be a bit annoying in the long run)
Not sure if you went with a fully random generation for the cards, there's been a few occasion where I was completely missing a direction and weren't able to play anything without screwing myself. might be a good improvement for after the jam to condition your card generation to always give at least a direction that you're missing the most so you don't get stuck.
Appart from that, it's a really solid & fun entry, especially fo a first jam !
Good job ! :)