Changed 8-3 to a simplified version of the old 0-λ group.
Changed w6 (clearing w6 and reaching 0-η).
Adjusted the difficulty of 3-8.
Slightly modified the terrain around 2-1 and 2-8 in w2.
Changed the appearance around 3-17 group in w3.
Other Changes
Disabled the game engine’s default setting that saves screenshots locally when the F12 key is pressed.
Fixed a bug that could occur in w8 and beyond where, if a piston with a movable side was stuck to a fixed block and could not retract, pistons with lower priority were not processed.
