Super Smash Bros. for Nintendo 3DS is a huge release for Nintendo's portable in October, and it also looks like it'll be a sizeable title in another key respect. If images of Japanese packaging are to be believed this will demand a fair bit of space on many SD cards.
According to the images posted on NeoGaf, the title will weigh in at around 2.1 GB (17,300 blocks) in Japan, which is over half of the standard 4GB SD card that comes with a 3DS XL (LL in Japan). It's not the only 3DS game to have this sort of file size, with Donkey Kong Country Returns 3D also coming in at over 2GB, marginally larger than this release. You can see the key area of the image below.
We've no reason to doubt that this is some leaked imagery of promotional or download code packaging in Japan, especially as it contains no reveals or inconsistencies with official information. Based on the format it strikes us as pre-order material to inform potential customers, and file size is certainly relevant when it's a hefty download; that size seems realistic, too, considering the amount of media — such as music tracks — that's likely to be included among the various in-game collectibles and libraries.
We'll see whether this size varies for the West in good time, but let us know whether a potential 2GB file size influences your potential download purchase.