Anything like this?

Is there any application whatsoever that would let me draw things by filling in boxes in a grid?

Like this DS game. (But without the numers/puzzles).

Paint? Or any other program like that?

Paint imagining a grid ? or graphics gale with the grid turned on ?... :S I might be missing the point too ? ...

Watch the video.

And if you haven't played the game I'm pretty sure its hard to understand x_x.

Thanks though.