diff --git a/src/game_interpreter.cpp b/src/game_interpreter.cpp
index aca814c645..45358e2799 100644
--- a/src/game_interpreter.cpp
+++ b/src/game_interpreter.cpp
@@ -3882,9 +3882,43 @@ bool Game_Interpreter::CommandBreakLoop(lcf::rpg::EventCommand const& /* com */)
 
 	// BreakLoop will jump to the end of the event if there is no loop.
 
-	bool has_bug = !Player::IsPatchManiac();
-	if (!has_bug) {
-		SkipToNextConditional({ Cmd::EndLoop }, list[index].indent - 1);
+	if (Player::IsPatchManiac()) {
+		// Maniac Patch: find the actual innermost enclosing loop by scanning backward.
+		// This correctly handles BreakLoop inside conditionals nested within a loop —
+		// e.g. BreakLoop at indent=2 inside an if (indent=1) inside an infinite loop
+		// (indent=0) must break the outer loop, not some unrelated inner loop that
+		// happens to appear later in the same loop body.
+		int break_indent = list[index].indent;
+		int target_indent = -1;
+
+		// endloop_depth[M] counts how many EndLoops at indent=M we have seen going
+		// backward; a matching Loop cancels one out rather than being the enclosing loop.
+		constexpr int kMaxIndent = 20;
+		int endloop_depth[kMaxIndent] = {};
+
+		for (int i = index - 1; i >= 0; --i) {
+			const auto& c = list[i];
+			if (c.indent >= break_indent) continue;
+			auto cc = static_cast<Cmd>(c.code);
+			if (cc == Cmd::EndLoop) {
+				if (c.indent < kMaxIndent) endloop_depth[c.indent]++;
+			} else if (cc == Cmd::Loop) {
+				int d = (c.indent < kMaxIndent) ? endloop_depth[c.indent] : 0;
+				if (d > 0) {
+					endloop_depth[c.indent]--;
+				} else {
+					target_indent = c.indent;
+					break;
+				}
+			}
+		}
+
+		if (target_indent < 0) {
+			index = static_cast<int>(list.size());
+			return true;
+		}
+
+		SkipToNextConditional({ Cmd::EndLoop }, target_indent);
 		++index;
 		return true;
 	}
diff --git a/src/game_interpreter_shared.cpp b/src/game_interpreter_shared.cpp
index c2bf508cd0..28e58b0905 100644
--- a/src/game_interpreter_shared.cpp
+++ b/src/game_interpreter_shared.cpp
@@ -78,6 +78,24 @@ inline bool Game_Interpreter_Shared::DecodeTargetEvaluationMode(lcf::rpg::EventC
 				return true;
 			}
 			break;
+		case 5: // Maniac Patch ScopedSingle: params[1] is positive self-var index → negative ID
+			if constexpr (validate_patches) {
+				if (!Player::IsPatchManiac()) {
+					return false;
+				}
+			}
+			id_0 = -com.parameters[1];
+			id_1 = id_0;
+			break;
+		case 6: // Maniac Patch ScopedRange
+			if constexpr (validate_patches) {
+				if (!Player::IsPatchManiac()) {
+					return false;
+				}
+			}
+			id_0 = -com.parameters[1];
+			id_1 = -com.parameters[2];
+			break;
 		default:
 			id_0 = 0;
 			id_1 = 0;
diff --git a/src/game_message.cpp b/src/game_message.cpp
index 0404cbd713..1214254bda 100644
--- a/src/game_message.cpp
+++ b/src/game_message.cpp
@@ -222,6 +222,13 @@ Game_Message::ParseParamResult Game_Message::ParseParam(
 	++iter;
 	bool stop_parsing = false;
 	bool got_valid_number = false;
+	bool is_negative = false;
+
+	// Maniac Patch: support negative variable IDs like \v[-1]
+	if (iter != end && *iter == '-') {
+		is_negative = true;
+		++iter;
+	}
 
 	while (iter != end && *iter != ']') {
 		if (stop_parsing) {
@@ -283,6 +290,7 @@ Game_Message::ParseParamResult Game_Message::ParseParam(
 		++iter;
 	}
 
+	if (is_negative) { value = -value; }
 	values.emplace_back(value);
 
 	// Actor 0 references the first party member
diff --git a/src/game_variables.cpp b/src/game_variables.cpp
index 4f77f700bb..0d11929646 100644
--- a/src/game_variables.cpp
+++ b/src/game_variables.cpp
@@ -145,6 +145,13 @@ void Game_Variables::WarnGet(int variable_id) const {
 
 template <typename F>
 Game_Variables::Var_t Game_Variables::SetOp(int variable_id, Var_t value, F&& op, const char* warn) {
+	// Maniac Patch self-variables: -1..-kSelfVarCount map to local storage
+	if (variable_id < 0 && variable_id >= -kSelfVarCount) {
+		auto& v = _self_vars[(-variable_id) - 1];
+		value = op(v, value);
+		v = Utils::Clamp(value, _min, _max);
+		return v;
+	}
 	if (EP_UNLIKELY(ShouldWarn(variable_id, variable_id))) {
 		Output::Debug(warn, variable_id, value);
 		--_warnings;
diff --git a/src/game_variables.h b/src/game_variables.h
index bd4d5d5211..8ed31e64a2 100644
--- a/src/game_variables.h
+++ b/src/game_variables.h
@@ -158,6 +158,9 @@ class Game_Variables {
 		void WriteArray(const int first_id_a, const int last_id_a, const int first_id_b, F&& op);
 
 	Variables_t _variables;
+	// Maniac Patch self-variables: negative IDs (-1..-N) map to self_vars[0..N-1]
+	static constexpr int kSelfVarCount = 64;
+	Var_t _self_vars[kSelfVarCount] = {};
 	Var_t _min = 0;
 	Var_t _max = 0;
 	size_t lower_limit = 0;
@@ -189,10 +192,18 @@ inline bool Game_Variables::IsValid(int variable_id) const {
 }
 
 inline bool Game_Variables::ShouldWarn(int first_id, int last_id) const {
+	// Self-variables (negative IDs in range) are valid, don't warn for them
+	if (first_id < 0 && first_id >= -kSelfVarCount && last_id < 0 && last_id >= -kSelfVarCount) {
+		return false;
+	}
 	return (first_id <= 0 || last_id > GetSizeWithLimit()) && _warnings > 0;
 }
 
 inline Game_Variables::Var_t Game_Variables::Get(int variable_id) const {
+	// Maniac Patch self-variables: -1..-kSelfVarCount map to local storage
+	if (variable_id < 0 && variable_id >= -kSelfVarCount) {
+		return _self_vars[(-variable_id) - 1];
+	}
 	if (EP_UNLIKELY(ShouldWarn(variable_id, variable_id))) {
 		WarnGet(variable_id);
 	}