Cute little game! I found the very physical slingshot pull-and-release mechanics very intuitive, fun and addictive to pull off, and the way you combined this with the theming of a dog pulling on a leash was a stroke of creative genius. Further combine this with great graphics and sound, a nice assortment of enemies to deal with, and other nice touches, and you've got a nice game, and even more so a great game jam result! Impressive stuff overall.
The only thing I felt a bit letdown with was the barking: it feels like it gets overshadowed as its power is very lacking compared to the dashes and I might've liked if there were certain enemies that were weak against it to create even more strategy...but it is still fun to press!
One thing to note is that I had a lot more fun when I switched over to controller: not only do analog sticks allow you to aim more accurately, but the physicality of pulling the stick back and letting go is more in-sync with the slingshot feel of the leash, creating a more satisfying connection of player and game. I wouldn't be surprised if people who play this with the controller would rate it higher: I know I did!