--- open-invaders-0.3.old/src/input.cc
+++ open-invaders-0.3/src/input.cc
@@ -72,7 +72,8 @@
 		keyreleased=false;
 	};
 	
-	if((key[KEY_LCONTROL]||key[KEY_RCONTROL])&&key[KEY_C])
+	if (((key[KEY_LCONTROL]||key[KEY_RCONTROL])&&key[KEY_C]) ||
+	    key [KEY_Q] || key [KEY_ESC])
 	{
 		program_active=false;
 		game_active=false;
@@ -103,8 +104,11 @@
 	{
 		posx=posx+2;
 	};
-	
-	if((key[keysdefined[4]]||joy[0].button[0].b)&&bulletposition.alive!=alive&&!in_process_of_fading&&!paused)
+
+	if ((key [keysdefined [4]] ||
+key [KEY_LCONTROL] || key [KEY_SPACE] ||
+joy [0].button [0].b) &&
+bulletposition.alive != alive && !in_process_of_fading && !paused)
 	{
 		bulletposition.xpos=posx;
 		bulletposition.ypos=526;
--- open-invaders-0.3.old/src/intro.cc
+++ open-invaders-0.3/src/intro.cc
@@ -458,7 +458,9 @@
 						play_sample(move_sound,sfx_volume,128,1000,0);
 					}
 
-					if(key[keysdefined[4]]||key[KEY_ENTER]||joy[0].button[0].b)
+					if (key [keysdefined [4]] ||
+key [KEY_LCONTROL] || key [KEY_SPACE] ||
+key [KEY_ENTER] || joy[0].button[0].b)
 					{
 						play_sample(select_sound,sfx_volume,128,1000,0);