It's like Cyclone + Cookie Clicker + Nubby's Number Factory! I love the look and feel of it, and it has a compelling loop, even if it's not too difficult. I think the negative particles add a nice wrinkle to the gameplay, but after a point, you gather so many that you just kind of have to tank the loss and buy more joy particles to compensate. Adding more strategic upgrades that augment the behavior of your particles (such as fields that slow/speed up certain types) could add a bit more depth to the gameplay. And some satisfying sound/particle effects could make the game quite addicting! Overall, I really liked it! Also, I thought the dialogue was pretty funny.