KungFu Panda one of the greatest Installments of All Time but Compared to the First 3 this one Was Weak.
They had the Perfect Story, They could've done Alot
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1) TAI-Lung and Po would have Teamed Up To fight Chameleon this Would've been a Greatest Colab Of all time
OR
2) Chameleon Would've Called Master Oogway from the spirit Releam And As soon As Chameleon Tried To take his powers Poo Stepped in and Oogway and Po Work Together to fight Chameleon and Between Fights Oogway Should've Threw inspirational Quotes Which Po Lacks and We would have finally seen master Oogway fight this could've been Great and The Fox At the end Should've saved the day and before Going back to the spirit realem He tell Po Who Could be his successor In Proverb
3) All Po Rivals Should have Teamed Up and Fight Together with Po
Anyway This Opportunity was there in there hands and They blew It !