My contribution to such a thread would consist of Nintendo Puzzle Collection, Freshly-Picked Tingle's Rosy Rupeeland, a few DS games from Taito that saw release in Europe but not over here (The New Zealand Story Revolution, Bubble Bobble Double Shot) or that probably won't be released outside of Japan (Arkanoid DS ;_;), and like a million anime-based GBA and DS games.
I too am interested in what happened to Marionette.