hey, it's been a long time I haven't touched this great game but I recently felt like playing it again :)
I wrote this comment to report a small bug: the function to delete game data doesn't work for me (unless it doesn't delete everything...) it only resets the settings.
the update it got with the different levels of difficulty is really great btw!
edit:
oops in fact the function works, I just had to re-open the game, my bad...