Classic "Shoot Em Up" for the DS

I am looking for a new Shoot em Up...something similar to Gradius / R-Type and so on. `cause i think i`ve really played them all on the GBA. :-\any suggestions would be very welcome,guys.

Geometry Wars, although it's a twist of the classic. It's still really good though. :DNanostray 1/2, it's heavy in 3D but the gameplay is a bit classic....and Space Invaders Extreme, really brings back the old times. :)

contra 4 (it has the original 2 games as unlockables)Metal slug 7.This is what I can reccomend :)(mighty tough to beat ethier)

thanks, i`ll check them out this weekend. It doesn`t have to be a 2D side-scrolling Shoot Em Up, as long as it isn`t such a boring Game like "Iridion 3D" for the GBAdvance. ;)