Square Enix has confirmed that the DS will be treated to even more Dragon Quest, in the form of spruced-up versions of IV, V, and VI.
You might be a long follower of the Dragon Quest Heroes series - you know, in that really foul manner where you make sure everyone knows it in as smug a way as possible. "Well, this clearly isn't a patch on the Japanese-only Dragon Quest Heroes XVIII for the never-released Sega Catacomb, and frankly who are you to pass comment on anything in my awesome presence." Do be quiet. No one likes you.
As it happens, Rocket Slime is a sequel to a Japanese-only release, which itself was a spin-off from the main series. But that doesn't matter, because you're not playing all of gaming history, you're playing this game, and it's rather a lot of fun.
One of my favourite things about games is describing their basic concept in as straightforward a way as possible, disguising the completely ludicrous nature of what's being said. In Dragon Quest Heroes: Rocket Slime, you play a blob of slime who must fight back against an invading army of duck-billed platypuses who have kidnapped all your friends. And have tank battles.