smoothly Animate clips simultaneously

Gave effort to play animation clips, referred various of tutorials. but can't conclude which is right way to animate "my character(Boy)". I have game requirement to move character only left and right move (left right walk clip). to see upside falling ball to catch it(moving face clips). to catch ball, hurt and dead(hand moving clips). all clips i have in fbx file(spitted clips).

Please suggest me, which is "best" way to do above. by legacy ,generic or humanoid. How by animation or animator

Thanks.