After some days of getting some feedback on the new blocks a new update brings you the ability to play the game the classic way too ;-)
So everytime, when you start a new game or restart(!) a new mine (click restart in game menu) you can choose the difficulty of the new mine!
Easy: Play it the classic way - only mud and rock
Medium: Get also Granite Blocks
Hard: Get Granite and Lava Blocks
You get also some bonuses in the harder modes, so you will find more dynamite and more money in the question mark fields.
Beside that the "Invisible Stone Bug" - yes, there was still one there - is finally fixed :-)
There was also some work involved to minimize the memory footprint of the game, so if you have already reached the memory limit of your phone, you may now play some levels more. With the current engine that is max-ed out.
Let me know what you think of the new update - and as always: Report any errors, so I can fix them!
Warning: This Update contains a little bug when reading savegames - all ores will disapear - please do not save your game if that happens and go for Update 1.4.8