Fun little tower defense, I had a lot of fun. I put all my scratch into one turret and it was glorious. It shot all the Hot dogs in a laser beam.

Nice idea, a couple of notes. 

I would change the color of the turret when it is upgraded (or at least give the information of the level of upgrading graphically). 

The arrangement of turrets should be more organic, perhaps being able to put them on all sides of the map so as to add a strategic component, this also applies to enemy spawn. 

Of course, it would also benefit to have turrets of different types, perhaps firing multiple shots at the same time or in bursts. 

Probably moving the camera to a more top-down position would give better visibility of the battlefield. 

In any case nice work, keep up the good work.

Cool, I like the concept!

I will say that I was missing some QOL features. For example knowing how many turret upgrades a turret has on it, what they are actually doing. so that I could formulate some kind of strategy. Good work otherwise though!

Nice