Here is a somewhat poorly-made costume, if you care, it was made after the attacks:
And its moves are these:
Entrance (unlike the actual Obi-Wan Kenobi, he won’t equip a blue-enlighted lightsaber)
Neutralization (can perform the two previous attacks)
Obi-Wan Chickenobi: “Hello there.”
Hero: “General Chickenobi…”
Obi-Wan Chickenobi: “It’s over, slave. I have the high ground.”
Hero: “And you still underestimate my power!”
Obi-Wan Chickenobi: “I will do what I must.”
Hero: “Try as much as you can.”
Hero: “Attack, Chickenobi!”
As for the amount of HP, if it increases depending on the difficulty and skill, just make the base health at ~100,000, double the amount of a normal Big Chicken.
Make the Lightning Fryer its weakness, as all “former Jedi chickens” are affected by this, and make the Utensil Poker and Neutron Gun its strengths.