Love the game!
Especially how the challenge can switch between the two modes of having so many blocks that you need to keep them out of the path of the player and not having any blocks and having to desperately put any block you find in front of the player. Great dynamic stuff!
However after I got around 30,000 points(I think?) the game game overed me even though nothing was stopping the cube. It almost seemed like the cube was getting slightly behind the screen until it hit a death wall, don't know if that's true of if it was intentional.
Still though, loved it!