hinq

It's not on rails - you fly Shoko around with the circle pad (plus L for strafing - toggle or hold option). You then drag the stylus around to move a targetting reticule on the top screen. When you raise the stylus from the pad you fire homing shots at your locked targets. Closest example I can think of for the shooting - the Panzer Dragoon games.

For anyone who has never had a chance to play this gem before - DreamWeb has now been released as freeware and runs in ScummVM.

http://www.scummvm.org/news/20121021/

*sigh* Just discovered this problem myself, shame I didn't see this thread before I bought it. :(