Hey there, thanks you and sorry to hear you have trouble.
The player spritesheet is just the *-character-animations.png file. All the animations are in this single file.
for the Enemies: *-enemies-animations.png
for the drone: *-drones.
for the animals *-animals
characters: *-characters
Since this is already used by thousands of people, I will not change the structure. Hope you understand.
If you need any help, let me know.
Kind regards,
- Sam