Let's face it: the vast majority of games don't really have particularly cool or clever titles. Often, they're just Thing: More Specific or Perhaps More General Thing, because colons add weight and authority, you know. Or at least the appeal of more words. Those titles that take the approach of fewer words are usually called something along the lines of Thing, or possibly Thingy Thing, because adjectives demonstrate creativity.
With the patterns established, we're free to look at titles that break out of the pack, the games with hilarious names -- intentional and not -- or just interesting titles. What are your favorites among the DS's library? Hands down, it should probably be Freshly Picked Tingle's Rosy Rupeeland.