Updated TODO list.
Started adding setting menu.
Fixed sprite-body rotation bug.
Removed redundant code from help menu, added key bindings and back arrow to settings.
Updated back arrows.
Updated TODO.
Arrow and enemies now staic when paused.
Added debug option to settings screen.
Added highscore reset option to settings screen.
Updated version to 1.2.1
Version 1.2.1: Added settings screen and fixed several bugs.