Flock is a casual two dimensional game, with a top down perspective, using collision detection, sprite rotation; multiple backgrounds coded entirely using C, using the DS homebrew libraries of PA_lib & ndslib.

The players use the stylus to direct birds to player’s goal, a red star. The stylus can be used to place four arrows, which redirect the birds. A.I. opponents also use arrows to redirect birds to their star. It’s a quick game with a only three rounds, per game, running at a hectic pace. The puzzle mode gives the player a set of arrows with the objective of directing all the birds and avoiding all the hazards.

Thanks to http://www.nintendomax.com/viewtopic.php?t=12023&f=19 for the, very very old, news.