To say this is a tech demo is to give it too much credit. It's a crappy arcadey minigame masquerading as a full price DS game. The only reason anyone bought this was because the DS line up was very thin in the months after launch. The game is slow paced, annoying and unforgiving, the most charitable I can be is to say it was a bad idea for how to use the touch screen that only made sense in these early, early days.