To ensure compatibility with PC builders or decompilation projects, the ROM must match specific depending on the region: US Version : 9bef1128717f958171a4afac3ed78ee2bb4e86ce JP Version : 8a20a5c83d6ceb0f0506cfc9fa20d8f438cafe51 EU Version : 4ac5721683d0e0b6bbb561b58a71740845dceea9 Technical Specifications Size : The original game is approximately 8 MB .