Release notes for 0.221

[b][ GENERAL ][/b] [list] [*]Added new NPC enemy A.R.N.O.L.D (or just Arnold). [*]Updated final boss (Osig) appearance with Halloween-themed changes. [*]Updated player avatar 3D models. [/list] [b][ GAMEPLAY ][/b] [list] [*]Updated controls and player avatar movement for improved gameplay. [*]Added [i]Perfect Attack[/i] mechanic and its indicator. [/list] [b][ ITEMS ][/b] [list] [*]Chain Link now has cone-shaped targeting, [/list] [b][ MISC ][/b] [list] [*]Various bug fixes. [/list]