Amazon Japan previously reported file sizes for both Bayonetta 1 and 2 on Switch. But now that Nintendo has the official information on the eShop, it seems what the retailer had listed was slightly inaccurate – at least for the first title.
The file size for Bayonetta 1 is 8.5GB. Bayonetta 2 will still take up 12.4GB. Amazon previously had the first Bayonetta down for about 16GB, so this is actually a good change.
Source: Switch eShop