diff -ur heartalien-1.2.2-orig/doc/README heartalien-1.2.2/doc/README
--- heartalien-1.2.2-orig/doc/README	2005-01-04 22:33:20.000000000 +0100
+++ heartalien-1.2.2/doc/README	2005-11-05 15:19:39.000000000 +0100
@@ -36,9 +36,9 @@
         To control your character, you may use either set of cursor keys.
         Moreover, here are extra keys available:
 
-        Z                      shoot, keep down in order to run
-        X                      use your whip
-        C                      jump
+        Left Ctrl              shoot, keep down in order to run
+        Left Alt               use your whip
+        Left Shift             jump
         F5                     quicksave (1 slot)
         F7                     quickload
         ESC                    leave game, or skip animation
diff -ur heartalien-1.2.2-orig/src/main.c heartalien-1.2.2/src/main.c
--- heartalien-1.2.2-orig/src/main.c	2005-01-12 23:00:58.000000000 +0100
+++ heartalien-1.2.2/src/main.c	2005-11-05 15:19:04.000000000 +0100
@@ -469,15 +469,15 @@
 			key_down = 0;
 			break;
 
-			case SDLK_z:
+			case SDLK_LCTRL:
 			key_a = 0;
 			break;
 
-			case SDLK_x:
+			case SDLK_LALT:
 			key_b = 0;
 			break;
 
-			case SDLK_c:
+			case SDLK_LSHIFT:
 			key_c = 0;
 			break;
 
@@ -542,15 +542,15 @@
 			key_down = 1;
 			break;
 
-			case SDLK_z:
+			case SDLK_LCTRL:
 			key_a = 1;
 			break;
 
-			case SDLK_x:
+			case SDLK_LALT:
 			key_b = 1;
 			break;
 
-			case SDLK_c:
+			case SDLK_LSHIFT:
 			key_c = 1;
 			break;