Eggworld, populated by humanoid chickens
From Create Your Own Story
You are a giant chicken. That's not an insult, you are an actual chicken. You are a citizen of the planet Eggworld, which is shaped like a giant egg. Things were going well for your people until an evil alien empire descended from the skies, obliterating half the planet. Much of the remaining population was thrust into slave labor. You are a member of the resistance. You are in your hidden base when you hear someone shout.
"Run for your life!", your friend Nugget says, "they're here!"
Thousands of enemy stormtroopers (no, not the guys in white armor with horrible aims) pour into the base. You: