Good job, its definitely fun to play. Couple of suggestions:

- a wave widget would be nice to show where we are in the wave

- you could add some special enemies, like more difficult ones with homing missiles

- enemy healthbars would be nice.

I loved the main mechanic of this! It felt so satisfying to spin away from incoming bullets, and the sound effect as you reload really makes you feel cool as you do it. I didn't understand the bowl-upgrade mechanic at first (I thought my pot was getting too hot when it was getting too cold - we associate things burning with them turning black so that may be where my confusion was from) but I had fun trying out the special bullets. 

The aiming itself was a bit floaty feeling at times, because the bullet travel time made it so by the time the bullet reached where I was aiming the enemy was long gone from there.  The arena felt a bit too big too, enemies on the far end wouldn't start chasing me until I got close. But there's a strong foundation of a fun mechanic here and that's very commandable!

I love the low-poly artstyle, specially for units. Roll animation is great. Enemy attacks are diverse which is cool, but overall it’s not my genre :v - can’t say I was bored tho