Chicken?
Chicken? is a creature that can be found in Dino's Dig.
Battle
Chicken? has 100 heart, 50 juice, 10 attack, 10 defense, 120 speed and 10 luck. Like most enemies, it will behave differently in battle based on its emotion, whatever in this case, it will only behave differentely when sad:
While neutral, happy or angry, it will always have a 90% chance of running from combat, else it will do nothing. If defeated it will reward 6000 exp.
While sad, it will always run away, if somehow defeated, it will also reward 6000 exp.
The difference of the epilogue variant of Celery is just the exp, which is 5250 for neutral and happy, 3937 for sad and 7875 for angry.
A unique variant of the Chicken? creature can be found on the tip top of Dino's Dig, defeating it will reward the player with the Chicken Ball and "the ain't nobody but us chickens" achievement. It has slightly different stats with 150 heart, 300 juice, 10 attack, 10 defense, 110 speed and 10 luck, and will behave identically with the others, but reward with 10000 exp and 5000 clams regardless of emotion.
Gallery
Trivia
The "Ain't nobody here but us chickens" achievement is likely a reference for the music of the same from Alex Kramer and Joan Whitney, from 1946, it was also used in The Muppets Show.