ArmouredShift isn't a dual stick shooter, it's tilt to move, one button to boost, one button to fire. But I can see how someone would think it was a dual stick from looking at the screen shots. (I did!)
I own it and remember playing it as a dual stick. Let me check again. Edit: Mind blown. I completely remember this being a dual stick. I'll edit that as well.
Isotope and Nano Fighter are two that I constantly return to. Been playing Guerrilla Bob and Daisy Mae a lot recently because I got them recently. If anyone is interested in mini-reviews, I'll write up as many of these as I own...
if you're willing to spend above two dollars, critical wave is the one to go for. i just got it and s far, it's the best dual stick shooting experience i've had for a VEEEERY long time. the other time was when i played my first ever dual stick shooter, alive4ever with my lil brother... happy days... *sighs*
Haven't played Critical Wave yet (had $2.87 in my account ) but I own most about 35 dual stick shooters at this point and actually like many of them. My tops right now are Minigore, Meteor Blitz, BloodNGuns, Annihillation Undead, and Catacombs in no particular order (short of putting Minisquadron because it is only part dual stick )
Minigore is going to get co-op and Revolt is either going to have 4 player online Vs on release or in an update.