A tally of "canon ball deaths" is displayed. "Cannon" refers to a large gun; "canon" refers to an accepted catalog of works.
The movie contains frequent discontinuities, including disappearing bee-sting marks and bird droppings on Kantmiss' face, her broken teeth suddenly being restored, and more. All of these discontinuities are intentional and serve several purposes. In particular, they allow the filmmakers to jump from one gag to the next without wasting resources on makeup that has already served its comical purpose.
Actor Hunter Baxley is listed in the credits as playing "Blonde Guy." It should have been "Blond" (masculine spelling) rather than "Blonde" (female spelling).
When Kantmiss is running through the forest after defeating Backpack Girl, a boom mic is clearly visible.