DS game recommendations

Does anyone know any good games for DS? I got a 3DS from my friends for my b'day in December last year. They also got me a second hand version of Pokemon Diamond. The only other games I have is Cooking Mama 3 and Pokemon Black in Japanese--- my brother also gave me 「ソラトロボ それからCODAへ」 (it doesn't really interest me though). I would be grateful if you could tell me if you know any good games around^^

I did a bit of sewing today and yesterday night. Hopefully I'll get two cosplays done this week:D

... I'm also thinking of making a tutorial:/