LK v6.09: Enemy abilities upgraded, Enemy art improved, Base stage improved

Gameplay:

• Added Enemy Equipment level 2, at difficulty level 8
• Defect 1, enemy abilities 2, defect 2, and enemy equipment moved down one difficulty level
• Destructible terrain fixed crashing the game when hit

Stages:

• Base stage added robotic arm and boxes
• Base stage made amount of openness more conformed, now draws holes in a grid based on difficulty
• Moon doodads fixed shadows being too dark, added shadow to shafts

Art:

• Enemy tank boss added explosion animation
• Enemy shield now has a different sprite for when hit, fixed default shield drawing twice
• Enemies now fade out when turning invisible
• Burst enemy fixed using melee sprite when switching to gun

GUI:

• Sector damage larger than 180 degrees fixed drawing smallest angle