-- We adjusted turning a lot, especially at higher upgrade levels and higher digging speeds.
-- When you take damage, you're invincible while you're blinking.
-- You now save your money when you win the game and when you restart early from the pause menu.
-- Radar 2 now shows color. (Shows same area)
-- Radar 3 now shows a larger area, and demons and epics are on it.
-- Epic finds are now way more common.
-- Enemies are less common in early levels as you upgrade your digger.
EDIT: We've found out that FireFox doesn't handle HTML5's blending. So the foreground tiles and two of the radars don't work right. This is a known bug in Firefox. Safari, on the other hand, doesn't handle WebGL at all, and the game should tell you so. Safari users will simply have to use another browser. Or like... heckle Apple about WebGL or something. FireFox users should try another browser too, since it looks better.
Upgrade your digger and plunge through 13 layers of the Earth to prove that if you dig deep enough, you really will make to China.