Index: src/game.d
==================================================================
--- src/game.d
+++ src/game.d
@@ -100,10 +100,11 @@
 
 	char[][] data;
 	Pos robot;
 	Pos lift;
 	int waterproof;
+	// TODO: immutable
 	Pos[char] tr_target;
 	Pos[][char] tr_source;
 
 	Map clone() const { return new Map(this); }
 	this(in Map m) {
@@ -110,10 +111,12 @@
 		foreach(s; m.data)
 			this.data ~= s.dup;
 		this.robot = m.robot.clone();
 		this.lift = m.lift.clone();
 		this.waterproof = m.waterproof;
+		this.tr_target = cast(Pos[char])m.tr_target;
+		this.tr_source = cast(Pos[][char])m.tr_source;
 	}
 
 	this(string[] raw_data, string[string] params, char[char] trampo)
 	{
 		int width = 0;
@@ -143,11 +146,11 @@
 
 		this.waterproof = params.get("Waterproof", "5").to!int();
 		foreach(fr,to; trampo) {
 			tr_target[fr] = tr_pos[to];
 			if(to !in tr_source) tr_source[to] = [];
-			tr_source[to] ~= tr_pos[to];
+			tr_source[to] ~= tr_pos[fr];
 		}
 	}
 
 	const @property {
 		int H() { return data.length; }
@@ -228,10 +231,17 @@
 		} else if(dy==0 && '*'==this[y+dy,x+dx] && ' '==this[y+dy*2,x+dx*2]) {
 			this[y,x]=' ';
 			this[y+dy,x+dx]='R';
 			this[y+dy*2,x+dx*2]='*';
 			robot = new Pos(y+dy,x+dx);
+		} else if('A'<=this[y+dy,x+dx] && this[y+dy,x+dx]<='I') {
+			this[y,x]=' ';
+			Pos tp = tr_target[this[y+dy,x+dx]];
+			foreach(p; tr_source[this[tp]])
+				this[p] = ' ';
+			this[tp] = 'R';
+			robot = tp;
 		}
 		if( update() )
 			dead = true;
 		return tuple(lambda,dead);
 	}

Index: src/gui.d
==================================================================
--- src/gui.d
+++ src/gui.d
@@ -76,10 +76,11 @@
 		this.render['.'] = "♒";
 		this.render['\\'] = "λ";
 		this.render['R'] = "☃";
 		this.render['D'] = "☠";
 		this.render['L'] = "☒";
+		this.render['O'] = "☐";
 		foreach(c,tp; g.map.tr_target) {
 			char d = g.map[tp];
 			this.render[c] = [cast(dchar)('㋀'+d-'1')].to!string();
 		}
 		foreach(char c; '1'..':') this.render[c] = [cast(dchar)('㏠'+c-'1')].to!string();