I was totally ready to play some weird poker variant, and then bam I'm in a survivors-like-ish fighting for my life! I enjoyed the twist, because I suck at poker.
A few things were a little unclear (luckily I read the page description so understood the card/hand idea) and could have used a bit more information about the gun choices before picking, on the other hand I pretty much just always chose whatever I had the highest numbers for rather than picking based on the gun...
Could definitely see this expanding with more roguelike mechanics and upgrades and stuff feeling really good.
The shop seemed like an interesting idea but I was never able to use it, I finished the game after picking up all coins and still only had $18. Probably needed either a lot more coin drops or lower prices there (also Davo totally scammed me, saying I could get a drink on him and not paying up, it's almost like you can't trust that guy or something.) Guessing this is partly RNG, but maybe some flat reward for each stage would help.
Music and audio was great, the art was a little inconsistent (super understandable and relatable for jam polishing priorities) but visually everything was clear and understandable while playing.
Great job! I look forward to seeing what you do with your plans for it.