DS:
The World Ends With You
Izuna: Legend of the Unemployed Ninja
Izuna2: The Unemployed Ninja Returns
My World My Way
Chrono Trigger DS
FFIV DS
Castlevania: Order of Ecclesia

PSP:
Star Ocean: First Departure
Star Ocean: Second Evolution
Crisis Core: FFVII
Castlevania: The Dracula X Chronicles
DJ Max Fever

this is a short list of some of the games i own but highly recomend...