2D Spine Platformer character Wolf4
youtube

included animations:
-idle1
-attack_claw
-attack_bite
-attack_punch
-confused
-die_back
-die_front
-dizzy
-fall
-hit_back
-hit_front
-jump
-landing
-run1
-run2
-sleep
-walk

All animations exported to Spine JSON format and PNGs images.

For to use 2D Spine animations you need  “http://esotericsoftware.com/spine-unity-download” Spine runtime for Unity http://esotericsoftware.com Spine Essential or Professional license.

Otherwise you can use exported animations in PNG format.