Great insights!! I did added more "back off" on new enemies but sometimes it seems that enemy is just standing there. I m thinking if there is a new way to keep the enemy having more movement away from player but still look a smart move but not just some ( clearly designed for player to attack). Another thing I m struggling with is the direction of the enemy. Since there is no jump button in the game, player can not switch side against the boss like Hollow Knight (or the boss jump behind the player). Still figuring a mechanic to switch side(I used a charge attack and teleporting in Level 1 2 bosses). Clearly, the main mechanic is still not complete. Appreciated your ideas, helps me clear the thought.