diff --git a/core/libs/HitLog.hpp b/core/libs/HitLog.hpp
index e94e3228b..bfe0b0397 100644
--- a/core/libs/HitLog.hpp
+++ b/core/libs/HitLog.hpp
@@ -4,7 +4,6 @@
 #include <atomic>
 #include <cstdio>
 
-// Logs the first three calls of the surrounding call site, then stays silent (keeps guest logs usable).
 #define APS5_HIT(tag, ...) \
     do { \
         static std::atomic<int> aps5HitCount{0}; \
@@ -15,4 +14,4 @@
         } \
     } while (0)
 
-#endif
+#endif  // CORE_LIBS_HITLOG_HPP
diff --git a/core/libs/prx/libSceConvertKeycode/Export.cpp b/core/libs/prx/libSceConvertKeycode/Export.cpp
new file mode 100644
index 000000000..b643fcbb6
--- /dev/null
+++ b/core/libs/prx/libSceConvertKeycode/Export.cpp
@@ -0,0 +1,24 @@
+#include <cstdint>
+#include "SceTypes.hpp"
+#include "HitLog.hpp"
+#include "prx/libc/include/General.hpp"
+
+namespace {
+constexpr int kErrInvalidAddress = static_cast<int>(0x80BC0031u);
+constexpr int kErrInvalidUserId = static_cast<int>(0x80BC0010u);
+}  // namespace
+
+extern "C" {
+
+int APS5_VABI sceConvertKeycodeGetImeKeyboardType(int32_t userId, uint32_t* type) {
+ if (type == nullptr) return kErrInvalidAddress;
+ if (userId < 0) return kErrInvalidUserId;
+ *type = 0;
+ return 0;
+}
+int APS5_VABI sceConvertKeycodeGetVirtualKeycode(std::uint64_t a0, std::uint64_t a1, std::uint64_t a2, std::uint64_t a3) {
+ APS5_HIT("CONVERTKEYCODE", "sceConvertKeycodeGetVirtualKeycode args 0x%llx 0x%llx 0x%llx 0x%llx -> error (signature unknown)",
+          static_cast<unsigned long long>(a0), static_cast<unsigned long long>(a1), static_cast<unsigned long long>(a2), static_cast<unsigned long long>(a3));
+ return kErrInvalidAddress;
+}
+}
diff --git a/core/libs/prx/libScePlayGo/Export.cpp b/core/libs/prx/libScePlayGo/Export.cpp
index 68524329c..f9b308cba 100644
--- a/core/libs/prx/libScePlayGo/Export.cpp
+++ b/core/libs/prx/libScePlayGo/Export.cpp
@@ -85,12 +85,7 @@ int APS5_VABI scePlayGoGetEta(int handle, const uint16_t* chunk_ids, uint32_t nu
 }
 
 int APS5_VABI scePlayGoGetInstallChunkId(int handle, uint16_t* out_chunk_id_list, uint32_t number_of_entries, uint32_t* out_entries) {
- (void)handle;
- (void)out_chunk_id_list;
- (void)number_of_entries;
- (void)out_entries;
- NotImplemented_nid_no_patch(__func__);
- return 0;
+    return scePlayGoGetChunkId(handle, out_chunk_id_list, number_of_entries, out_entries);
 }
 
 int APS5_VABI scePlayGoGetInstallSpeed(int handle, int32_t* out_speed) {
diff --git a/core/libs/prx/libSceVoiceChat/Export.cpp b/core/libs/prx/libSceVoiceChat/Export.cpp
new file mode 100644
index 000000000..4fbb609c9
--- /dev/null
+++ b/core/libs/prx/libSceVoiceChat/Export.cpp
@@ -0,0 +1,64 @@
+#include <atomic>
+#include <cstdint>
+#include <cstdio>
+#include <cstddef>
+#include <cstring>
+#include <map>
+#include <mutex>
+#include <string>
+#include "SceTypes.hpp"
+#include "prx/libc/include/General.hpp"
+
+namespace {
+constexpr int VOICECHAT_ERROR_SIGNED_OUT = static_cast<int>(0x80550006u);
+}  // namespace
+
+namespace {
+void logSoft(const char* func, const char* what) {
+    static std::mutex mtx;
+    static std::map<std::string, int> hits;
+    std::lock_guard<std::mutex> lk(mtx);
+    if (++hits[func] > 3) {
+        return;
+    }
+    std::fprintf(stderr, "[SOFT-VOICECHAT] %s -> %s\n", func, what);
+    std::fflush(stderr);
+}
+}  // namespace
+
+extern "C" {
+
+int APS5_VABI sceVoiceChatInitialize(void* param) { (void)param; return 0; }
+int APS5_VABI sceVoiceChatTerminate(void) { return 0; }
+int APS5_VABI sceVoiceChatRegisterHandlers(void* a) { (void)a; return 0; }
+int APS5_VABI sceVoiceChatRegisterMicEventHandler(void* a, void* b) { (void)a; (void)b; return 0; }
+int APS5_VABI sceVoiceChatProcessEvent(void) { return 0; }
+int APS5_VABI sceVoiceChatDeleteRequest(int requestId) { (void)requestId; return 0; }
+
+int APS5_VABI sceVoiceChatCreateRequest(void* a, void* b) {
+    (void)a;
+    (void)b;
+    logSoft(__func__, "SIGNED_OUT (offline)");
+    return VOICECHAT_ERROR_SIGNED_OUT;
+}
+
+#define VOICECHAT_OFFLINE_REQUEST(NAME) \
+    int APS5_VABI NAME(int requestId, void* a, void* b) { \
+        (void)requestId; \
+        (void)a; \
+        (void)b; \
+        logSoft(#NAME, "SIGNED_OUT (offline)"); \
+        return VOICECHAT_ERROR_SIGNED_OUT; \
+    }
+
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestRegisterSession)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestUnregisterSession)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestCreateGameSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestDeleteGameSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestJoinGameSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestLeaveGameSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestCreatePlayerSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestDeletePlayerSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestJoinPlayerSessionVoiceChatChannel)
+VOICECHAT_OFFLINE_REQUEST(sceVoiceChatRequestLeavePlayerSessionVoiceChatChannel)
+}