Helicopter DS is a game in which you press the A button to increase your altitude, in which to avoid all of the green obstacles. Also, get the +500 points, and you will get 500 more points. Concerning physics, this game is better than the Flash Game, But not as good as the Wii one.
Controls
In game:
A||Touchscreen: increase altitude
Left/Right: change color or ship
Up/Down: change size of ship
Start: Pause/Un-pause
In menu: (if you have at least half a brain, you wont need to read the menu's controls)
Up/Down: Change selection
A||Start: Load level
X: Change theme
Select: Show credits