animations were made for approximately such creatures https://www.unrealengine.com/marketplace/en-US/product/swamp-fishmutant
40 simple animations for creatures
attack - 11 (7root-4 Inp)
death - 2
eat - 3 (down,loop,up)
hit - (front,back,left,right - root Front,back,left,right)
power hit - 1 (root)
idle - 4
roar - 2
stun - 1
turn - left,right (root)
walk - front (root)
walk - back - 2 (root)
walk - left , right (root)
run - 1
if you do not work with root animations, you can check the box on forse root lock, the animation will be in place