What would a PSP-style game look like on the 3DS? Samurai Warriors Chronicles has the cut-scenes, the voicework, the multiple loading screens - and the ambition to look and play like a PS2-era home video game - that make it a lot like a PSP game. But the game is a 3DS launch title.
Samurai Warriors Chronicles also has good glasses-free 3D effects (in gameplay and cutscenes) as well as smart two-screen design, neither of which are PSP traits. Nevertheless, to see a PSP-style game on the 3DS, watch this video. Hey, this game is so PSP that, when you play it, you'll find yourself wishing it had a second analogue stick for camera control. Now if only I could hear the UMD whirring noise while I was playing this thing.
For comparison, this is the PSP's Samurai Warriors: State of Play, which came out in 2006.