Maybe not as much fun as Mighty Flup Champs!, Mighty Milky Way is still interesting and full of content, and capable of keeping the player on the DSi for a long time.
It's arguably even weirder than those first two 'Wares and every bit as unique, and it's serving to solidify WayForward even further as one of the top developers creating Nintendo downloadable games.
If you're looking to grab a DSiWare title in preparation for the upcoming 3DS eShop, Mighty Milky Way would be a mighty good choice, providing plenty of fun and intrigue.
The further you go, the more hazards await, and the more colourful your language gets. One day they'll be forced to put blood pressure warnings on these things.