diff --git a/include/MetroidPrime/CMemoryCardDriver.hpp b/include/MetroidPrime/CMemoryCardDriver.hpp
new file mode 100644
index 00000000..ece602a1
--- /dev/null
+++ b/include/MetroidPrime/CMemoryCardDriver.hpp
@@ -0,0 +1,109 @@
+#ifndef _CMEMORYCARDDRIVER
+#define _CMEMORYCARDDRIVER
+
+#include "MetroidPrime/Player/CGameState.hpp"
+
+class CMemoryCardDriver {
+public:
+  enum EState {
+    kS_Initial = 0,
+    kS_Ready = 1,
+    kS_NoCard = 2,
+    kS_DriverClosed = 3,
+    kS_CardFormatted = 4,
+    kS_CardProbeDone = 5,
+    kS_CardMountDone = 6,
+    kS_CardCheckDone = 7,
+    kS_FileCreateDone = 8,
+    kS_FileCreateTransactionalDone = 9,
+    kS_FileWriteTransactionalDone = 10,
+    kS_FileDeleteAltTransactionalDone = 11,
+    kS_CardProbeFailed = 12,
+    kS_CardMountFailed = 13,
+    kS_CardCheckFailed = 14,
+    kS_FileDeleteBadFailed = 15,
+    kS_FileDeleteAltFailed = 16,
+    kS_FileBad = 17,
+    kS_FileCreateFailed = 18,
+    kS_FileWriteFailed = 19,
+    kS_FileCreateTransactionalFailed = 20,
+    kS_FileWriteTransactionalFailed = 21,
+    kS_FileDeleteAltTransactionalFailed = 22,
+    kS_FileRenameBtoAFailed = 23,
+    kS_CardFormatFailed = 24,
+    kS_CardProbe = 25,
+    kS_CardMount = 26,
+    kS_CardCheck = 27,
+    kS_FileDeleteBad = 28,
+    kS_FileRead = 29,
+    kS_FileDeleteAlt = 30,
+    kS_FileCreate = 31,
+    kS_FileWrite = 32,
+    kS_FileCreateTransactional = 33,
+    kS_FileWriteTransactional = 34,
+    kS_FileDeleteAltTransactional = 35,
+    kS_FileRenameBtoA = 36,
+    kS_CardFormat = 37
+  };
+
+  enum EError {
+    kE_OK,
+    kE_CardBroken,
+    kE_CardWrongCharacterSet,
+    kE_CardIOError,
+    kE_CardWrongDevice,
+    kE_CardFull,
+    kE_CardStillFull, /* After attempting alt-delete (if needed) */
+    kE_CardNon8KSectors,
+    kE_FileMissing,
+    kE_FileCorrupted
+  };
+
+  static bool IsCardBusy(EState);
+  static bool IsCardWriting(EState);
+  CMemoryCardDriver();
+  void ClearFileInfo();
+  ~CMemoryCardDriver();
+  void Update();
+  void HandleCardError(int);
+  void UpdateMountCard(int);
+  void UpdateCardCheck();
+  void UpdateFileRead();
+  void UpdateFileDeleteAlt();
+  void UpdateFileDeleteBad();
+  void UpdateFileCreate();
+  void UpdateFileWrite();
+  void UpdateFileCreateTransactional();
+  void UpdateFileWriteTransactional();
+  void UpdateFileRenameBtoA();
+  void StartFileRenameBtoA();
+  void WriteBackupBuf();
+  void UpdateFileAltDeleteTransactional();
+  void UpdateCardFormat();
+  void StartCardProbe();
+  void UpdateCardProbe();
+  void StartMountCard();
+  void StartCardCheck();
+  void ClearError();
+  void CheckCardCapacity();
+  void NoCardFound();
+  void IndexFiles();
+  void StartFileDeleteBad();
+  void StartFileCreate();
+  void StartFileWrite();
+  void StartFileCreateTransactional();
+  void StartFileWriteTransactional();
+  void StartFileDeleteAltTransactional();
+  void StartCardFormat();
+  void InitializeFileInfo();
+  void ReadFinished();
+  void EraseFileSlot(int);
+  void BuildNewFileSlot(int);
+  void BuildExistingFileSlot(int);
+  void ImportPersistentOptions();
+  void ExportPersistentOptions();
+  const CGameState::GameFileStateInfo* GetGameFileStateInfo(int);
+  bool GetCardFreeBytes();
+};
+
+#endif // _CMEMORYCARDDRIVER
diff --git a/include/MetroidPrime/Player/CGameOptions.hpp b/include/MetroidPrime/Player/CGameOptions.hpp
index 41e83a46..77c403b0 100644
--- a/include/MetroidPrime/Player/CGameOptions.hpp
+++ b/include/MetroidPrime/Player/CGameOptions.hpp
@@ -7,6 +7,7 @@
 #include "rstl/reserved_vector.hpp"
 #include "rstl/vector.hpp"
 
+#include "Kyoto/SObjectTag.hpp"
 #include "Kyoto/Streams/CInputStream.hpp"
 #include "MetroidPrime/TGameTypes.hpp"
 
diff --git a/include/MetroidPrime/Player/CGameState.hpp b/include/MetroidPrime/Player/CGameState.hpp
index 44c189f6..e75defc6 100644
--- a/include/MetroidPrime/Player/CGameState.hpp
+++ b/include/MetroidPrime/Player/CGameState.hpp
@@ -30,6 +30,18 @@ public:
   u64& CardSerial() { return x210_cardSerial; }
   rstl::vector< uchar >& BackupBuf() { return x218_backupBuf; }
 
+  struct GameFileStateInfo {
+    double x0_playTime;
+    CAssetId x8_mlvlId;
+    float xc_health;
+    uint x10_energyTanks;
+    uint x14_timestamp;
+    uint x18_itemPercent;
+    float x1c_scanPercent;
+    bool x20_hardMode;
+  };
+  static GameFileStateInfo LoadGameFileState(const uchar* data);
+
 private:
   rstl::reserved_vector< bool, 128 > x0_;
   CAssetId x84_mlvlId;
diff --git a/include/MetroidPrime/Player/CHintOptions.hpp b/include/MetroidPrime/Player/CHintOptions.hpp
index c2ea6b2e..ab0aae55 100644
--- a/include/MetroidPrime/Player/CHintOptions.hpp
+++ b/include/MetroidPrime/Player/CHintOptions.hpp
@@ -4,6 +4,7 @@
 #include "types.h"
 
 #include "rstl/vector.hpp"
+#include "rstl/string.hpp"
 
 enum EHintState { kHS_Zero, kHS_Waiting, kHS_Displaying, kHS_Delayed };
 
diff --git a/src/MetroidPrime/CMemoryCardDriver.cpp b/src/MetroidPrime/CMemoryCardDriver.cpp
new file mode 100644
index 00000000..622ebe31
--- /dev/null
+++ b/src/MetroidPrime/CMemoryCardDriver.cpp
@@ -0,0 +1,93 @@
+#include "MetroidPrime/CMemoryCardDriver.hpp"
+
+bool CMemoryCardDriver::IsCardBusy(EState) { return false; }
+
+bool CMemoryCardDriver::IsCardWriting(EState) { return false; }
+
+CMemoryCardDriver::CMemoryCardDriver() {}
+
+void CMemoryCardDriver::ClearFileInfo() {}
+
+CMemoryCardDriver::~CMemoryCardDriver() {}
+
+void CMemoryCardDriver::Update() {}
+
+void CMemoryCardDriver::HandleCardError(int) {}
+
+void CMemoryCardDriver::UpdateMountCard(int) {}
+
+void CMemoryCardDriver::UpdateCardCheck() {}
+
+void CMemoryCardDriver::UpdateFileRead() {}
+
+void CMemoryCardDriver::UpdateFileDeleteAlt() {}
+
+void CMemoryCardDriver::UpdateFileDeleteBad() {}
+
+void CMemoryCardDriver::UpdateFileCreate() {}
+
+void CMemoryCardDriver::UpdateFileWrite() {}
+
+void CMemoryCardDriver::UpdateFileCreateTransactional() {}
+
+void CMemoryCardDriver::UpdateFileWriteTransactional() {}
+
+void CMemoryCardDriver::UpdateFileRenameBtoA() {}
+
+void CMemoryCardDriver::StartFileRenameBtoA() {}
+
+void CMemoryCardDriver::WriteBackupBuf() {}
+
+void CMemoryCardDriver::UpdateFileAltDeleteTransactional() {}
+
+void CMemoryCardDriver::UpdateCardFormat() {}
+
+void CMemoryCardDriver::StartCardProbe() {}
+
+void CMemoryCardDriver::UpdateCardProbe() {}
+
+void CMemoryCardDriver::StartMountCard() {}
+
+void CMemoryCardDriver::StartCardCheck() {}
+
+void CMemoryCardDriver::ClearError() {}
+
+void CMemoryCardDriver::CheckCardCapacity() {}
+
+void CMemoryCardDriver::NoCardFound() {}
+
+void CMemoryCardDriver::IndexFiles() {}
+
+void CMemoryCardDriver::StartFileDeleteBad() {}
+
+void CMemoryCardDriver::StartFileCreate() {}
+
+void CMemoryCardDriver::StartFileWrite() {}
+
+void CMemoryCardDriver::StartFileCreateTransactional() {}
+
+void CMemoryCardDriver::StartFileWriteTransactional() {}
+
+void CMemoryCardDriver::StartFileDeleteAltTransactional() {}
+
+void CMemoryCardDriver::StartCardFormat() {}
+
+void CMemoryCardDriver::InitializeFileInfo() {}
+
+void CMemoryCardDriver::ReadFinished() {}
+
+void CMemoryCardDriver::EraseFileSlot(int) {}
+
+void CMemoryCardDriver::BuildNewFileSlot(int) {}
+
+void CMemoryCardDriver::BuildExistingFileSlot(int) {}
+
+void CMemoryCardDriver::ImportPersistentOptions() {}
+
+void CMemoryCardDriver::ExportPersistentOptions() {}
+
+const CGameState::GameFileStateInfo* CMemoryCardDriver::GetGameFileStateInfo(int) {
+  return nullptr;
+};
+
+bool CMemoryCardDriver::GetCardFreeBytes() { return false; }