Skies of Arcadia - Tuna Cutlass + Swirlmirang (PAL)
By DLCarchive Public Version 1
Makes two bonus weapons available to buy from the Mystery Merchant at inns. Region: PAL. Four VMU blocks. Source: Dreamcast Live / Dreamcast-Talk archive. https://dreamcastlive.net/skies-of-arcadia-dlc/ Not game-tested.
ARCADIA_ED01 4 blocks
Raw VMU save data blocks. Use the Dreamcast app to download on a real console.