I must have been really bored.
I gotta say, I never thought I would be so entertained by such a simple concept game for such a length of time O_o. Playing for a half hour just to see if there was a size cap (I didn't care about the speed cap, my computer couldn't handle it anyway lol.) Seeing as there was none, I proceeded to see if there was a score cap, and I hit 1.5 billion points. I had to stop because my fingers and wrists were starting to hurt haha. Not to mention I thought a combo cap of 999 was the top, but no, I continued on to hit 4,006 and quit because I realised I spent a half hour on the sandbox alone. Awesome game, and the perfect time waster :D.