Ragdoll Base 2 Questions

Greetings, Just 2 simple questions about this game - Stickman Warriors - https://play.google.com/store/apps/details?id=com.ViperGames.StickmanWarriors

1 - Player Controls - How the player controls has been Created(Just the mesh or that 2d stickman movement), are these on player or enemy heads?

2 - Enemy AI - How the enemy ai has been set on this game like the enemy rotate flies come to player smartly (Well might be chance but perfect) , Navigation Mesh is un-understandable with these function (Including rai ai(just forget that)).

Please guys if these is a script that can do miracle or something to achieve that kind of ai .