Okay, after some playing: The game is very fun! Especially as an entry on a short jam like this, I'm super impressed *insert sparkly anime eyes*
If you decide to continue working on this game, I have two ideas how to make the experience a bit smoother yet.
1. A restart button - Especially in the first few rounds where I only started to learn the core mechanics, I would have loved to just end the attempt and start new xD
2. I found myself confused several times about which card I had equipped and was placing, since the sprite on the mouse doesn't change. Apparently it wasn't always the last card I had clicked? It might be cool to add a visual aid for which germ I'm about to plant.
Edit: Playing some more, I can see that I can rightclick to discard what is on my mouse, and pick up something else XD My bad, but maybe something to add in the tutorial?
Overall, I am obsessed with this! Very outside-the-box design and it makes me feel like a microbiologist, which I adore! I'm going to check out some more projects you uploaded later because dang, I love your style.
Also the art is super inspiring!!