diff --git a/defs.h b/defs.h
index 9209246..78a1f62 100644
--- a/defs.h
+++ b/defs.h
@@ -143,6 +143,7 @@
 
 #define BOMBSHAKETIME	100 // time for screen will shake after a bomb
 #define RATSHAKETIME	50 // shake time when king rat is stunned
+#define SNAILSHAKETIME	35 // shake time when king snail jumps
 
 #define BOSSFLASHTIME	15 // how long bosses flash white for when hit
 #define BOSSDIETIME	150 // how long bosses flash when dead
@@ -242,7 +243,7 @@
 /* enums */
 
 /* sounds */
-#define MAXFX		48
+#define MAXFX		50
 #define FX_SHOOT	0
 #define FX_SLAM		1
 #define FX_KILL		2
@@ -291,6 +292,8 @@
 #define FX_GUN		45
 #define FX_ALARM	46
 #define FX_ZAP		47
+#define FX_SNAILPREPARE	48
+#define FX_WHOOSH	49
 
 // card suits
 #define CS_HEART	1
@@ -488,6 +491,7 @@
 #define PW_GUNNER	13	// machine gunner
 // "virtual" powerup for bosses
 #define PW_RATSHAKE	20	// shake screen horizontally
+#define PW_SNAILSHAKE	21	// shake screen vertically
 
 #define GUNNERSPEED	2.5	// speed crosshair moves in gunner mode
 #define GUNNERDELAY	10	// how fast gunner powerup shoots
diff --git a/rc.c b/rc.c
index 41c32f3..b2b9d81 100644
--- a/rc.c
+++ b/rc.c
@@ -751,6 +751,32 @@ int main (int argc, char **argv) {
 					}
 					
 					
+					if (--player->timer1 == 0) {
+						losepowerup(player);
+					}
+				} else if (player->powerup == PW_SNAILSHAKE) { // vertical shake due to king snail
+					// shake screen
+					if (timer % 5 == 0) {
+						int amt;
+						SDL_Rect area;
+
+						amt = (rand() % 20)+1;
+
+						// offset screen upwards
+						area.x = 0;
+						area.y = amt;
+						area.w = 640;
+						area.h = 480-amt;
+						SDL_BlitSurface(screen, &area, screen, NULL);
+
+						// fill in empty bit 
+						area.x = 0;
+						area.y = 480-amt;
+						area.w = 640;
+						area.h = amt;
+						SDL_FillRect(screen, &area, SDL_MapRGB(screen->format,black.r,black.g,black.b));
+					}
+
 					if (--player->timer1 == 0) {
 						losepowerup(player);
 					}
@@ -1338,6 +1364,8 @@ void die(sprite_t *s) {
 		// stop screen shaking and rats falling
 		if (player->powerup == PW_RATSHAKE) {
 			losepowerup(player);
+		} else if (player->powerup == PW_SNAILSHAKE) {
+			losepowerup(player);
 		}
 		// reset timers
 		s->timer1 = 0;
@@ -1360,6 +1388,7 @@ void die(sprite_t *s) {
 			case P_KINGRAT:
 				addsprite(P_BIGSPEED, (640/2), 0, "bigspeed");
 				break;
+			// TODO: kingsnail perm powerup
 		}
 	} else if ((s->id == P_SNAIL) && (s->lives > 0)) { // snails can't die but turn into slugs instead
 		sprite_t *newsp;
@@ -2746,6 +2775,7 @@ int movesprite(sprite_t *s) {
 					if ((countmonsters(P_SNAIL) == 0) || (s->timer1 == KSS_WALK1)) { // next state is shooting
 						s->timer1 = KSS_PAUSE1;
 						s->timer2 = KS_SHOOTWAIT;
+						playfx(FX_SNAILPREPARE);
 					} else { // next state is jump
 						s->timer1 = KSS_PAUSE2;
 						s->timer2 = KS_JUMPWAIT;
@@ -2764,6 +2794,7 @@ int movesprite(sprite_t *s) {
 				// shoot!
 				s->timer1 = KSS_SHOOT;
 				// shell cracks
+				playfx(FX_CRACK);
 				newsp = addsprite(P_KSSHELL, s->x + -s->dir*((s->img->w/4) + (rand() % 7)-3), 
 					   s->y-(s->img->h/2) - (rand() % 7) - 3, "ksshell");
 
@@ -2787,6 +2818,7 @@ int movesprite(sprite_t *s) {
 					newsp->jumpdir = (((double)(rand() % 110) - 50) / 10); // -5 to 5
 					if (rand() % 2) newsp->dir = 1;
 						else newsp->dir = -1;
+					playfx(FX_WHOOSH);
 				} else {
 					// enough, regenerate shell
 					s->timer1 = KSS_REGEN;
@@ -2806,10 +2838,39 @@ int movesprite(sprite_t *s) {
 			
 		} else if (s->timer1 == KSS_PAUSE2) {
 			if (!s->jumptimer) {
+				int ydis;
+				int try;
+				int tot;
+				int n;
+
+				// remember our height
+				s->timer3 = s->y;
+
 				// delay then jump
 				s->jumptimer = getjumpdelay(s->id);
-				s->willjumpspeed = getmonjumpspeed(s);
 				s->jumpdir = 0;
+
+				if ((player->dead) || (player->y > s->y)) { // player below or dead
+					try = 2;
+				} else {
+					// get distance
+					ydis = abs(s->y - player->y);
+					// figure out how much we need to jump
+					for (try = 2; try < (KR_MAXJUMP-1); try++) {
+						tot = 0;
+						for (n = try; n >= 1; n--) {
+							tot = tot + (5*n);
+						}
+						if (tot >= ydis) {
+							break;
+						}
+					}
+				}
+				jump(s, 0);
+				// manually adjust speed
+				try++; // one more just to be sure
+				s->willjumpspeed = try;
+
 				// next state
 				s->timer1 = KSS_JUMPING;
 			}
@@ -2817,6 +2878,7 @@ int movesprite(sprite_t *s) {
 			// wait until we land... 
 			if (!s->jumptimer && !s->jumping && !s->falling) {
  				sprite_t *ss, *nexts;
+
 				// snails turn to slugs!!
 				for (ss = sprite ; ss ; ss = nexts) {
 					nexts = ss->next;
@@ -2827,6 +2889,12 @@ int movesprite(sprite_t *s) {
 				// now pause a while before moving again
 				s->timer1 = KSS_PAUSE3;
 				s->timer2 = KS_RELOADWAIT;
+
+				// shake the screen via a fake player powerup
+				playfx(FX_BOSSWALL);
+				player->powerup = PW_SNAILSHAKE;
+				player->timer1 = SNAILSHAKETIME;
+
 			}
 		} else if (s->timer1 == KSS_PAUSE3) {
 			s->timer2--;
@@ -4967,6 +5035,15 @@ void dogravity(sprite_t *s) {
 					s->falling = B_FALSE;
 					s->climbing = B_FALSE;
 				}
+			} else if ((s->id == P_KINGSNAIL) && (s->timer1 == KSS_JUMPING)) { // special case
+				// king snail drops until he is at original height
+				if (s->y < s->timer3) { // above orig height
+					ontheground = B_FALSE;
+				} else {
+					s->dropping = B_FALSE;
+					s->falling = B_FALSE;
+					s->climbing = B_FALSE;
+				}
 			} else if ((s->id == P_SNAIL) && (s->lives == 0) && s->falling) {
 				// snail dies - this is actuall the snail's shell
 				s->dead = D_FINAL;
@@ -6069,6 +6146,8 @@ int initsound(void) {
 	loadfx(FX_GUN, "gun.wav");
 	loadfx(FX_ALARM, "alarm.wav");
 	loadfx(FX_ZAP, "zap.wav");
+	loadfx(FX_SNAILPREPARE, "longdrum.wav");
+	loadfx(FX_WHOOSH, "whoosh.wav");
 
 	// load sound effects
 	for  (i = 0; i < MAXFX; i++) {