I don`t know why you thing CW flopped on DS. I think to sell 1 million games is quite an accomplishment. I know it is not much in comparison to other GTA-games but as far as I can see that might not be the DS-demographics fault... According to VGCharts GTA:CW sold the following (with aggregated third- and tenth-weeks sales to have a temporal comparison):Guild McCommunist said:Those are all obvious outside of GTA, which I would bet money it won't. After Chinatown Wars flopped at retail, they probably won't be visiting a Nintendo console, let alone a handheld, anytime soon for a GTA game. Wait for the PSP2 and you'll see some significant GTA titles probably.
-NDS-Version: 1,047,768 (268,388 in the first three and 539,185 in the first ten weeks)
-PSP-Version: 501,850 (65,828 in the first three and 286,864 in the first ten weeks)
Now if we look at the sales of the other two GTA-games on PSP (LCS: 6,115,097 and VCS: 3,752,300) you can clearly see, that CW did even worse on PSP, even though you can see that the other two GTA games were quite popular! So I assume the overall relative failure of CW could be either because nowadays top-down-GTA-games are not as popular as GTAIII-style-games (most likely IMO!) or because it was not exclusive to the PSP and that`s why it didn`t sell on that system (people might have bought it for DS-version beforehand - don`t think it has mattered much though, since there are still at least approx. 2,500,000 Million (3,7Mio-1Mio-5T) people who didn`t buy CW for either DS or PSP!!).
So I`m not quite sure if CW, particularly on DS, can really be called a flop. If you ask me clearly not!
(actually I don`t know how reliable VGCharts is but other numbers of games I do know their sales were exactly according to what I know so I think they are reliable...)
On Topic: I would love to see a Remake of Metroid II: RoS, since it has so much potential as a game put the gameboys hardware just couldn`t deliver it completely. With enhancements (graphically and gameplay-wise) similar to maybe ZeroMission this game could shine like it could have on NES. I would love to see it actually happen in 3D with all new graphics