This game was on my wishlist for a long time and finaly got it from a friend and was excited to play it.
Redid the 1st lvl a few times trying to get some hard achivements on it but never made it so I gave up and just started playing the game and this is when I found out about the biggest problem THE GAME DOESN'T SAVE for a lot of people.
Got to 3rd lvl saved the game (the game said it was saved and there was a continue when you go to main screen) and exited. A few hours later wanted to continue my game but when I got in there was no save.. Did a few google searches and this is a known bug.
THE WORST PART is that the devs just diched (as far as I was told) and didn't fix this mess but they still continue to sell the game.
Until this MAJOR, GAME BREAKING BUG is fix I can't recommend this game.

P.S. Please note that not 100% of the people get the save bug but enough of people get it so I don't recommend testing your luck