diff --git a/src/k_kart.c b/src/k_kart.c
index fa90649c4..9e617774b 100644
--- a/src/k_kart.c
+++ b/src/k_kart.c
@@ -10555,7 +10555,7 @@ boolean K_FastFallBounce(player_t *player)
 		if (player->curshield == KSHIELD_BUBBLE)
 		{
 			S_StartSound(player->mo, sfx_s3k44);
-			P_InstaThrust(player->mo, player->mo->angle, max(player->speed, abs(player->fastfall)));
+			P_InstaThrust(player->mo, player->mo->angle, 11*max(player->speed, abs(player->fastfall))/10);
 			bounce += 3 * player->mo->scale;
 		}
 		else
@@ -11432,9 +11432,12 @@ void K_MoveKartPlayer(player_t *player, boolean onground)
 									if (player->bubbleblowup > bubbletime*2)
 									{
 										K_ThrowKartItem(player, (player->throwdir > 0), MT_BUBBLESHIELDTRAP, -1, 0, 0);
-										P_InstaThrust(player->mo, player->mo->angle, player->speed + (80 * mapobjectscale));
-										player->sliptideZipBoost += TICRATE; // Just for keeping speed briefly vs. tripwire etc.
-										// If this doesn't turn out to be reliable, I'll change it to directly set leniency or something.
+										if (player->throwdir == -1)
+										{
+											P_InstaThrust(player->mo, player->mo->angle, player->speed + (80 * mapobjectscale));
+											player->sliptideZipBoost += TICRATE; // Just for keeping speed briefly vs. tripwire etc.
+											// If this doesn't turn out to be reliable, I'll change it to directly set leniency or something.
+										}
 										K_PlayAttackTaunt(player->mo);
 										player->bubbleblowup = 0;
 										player->bubblecool = 0;
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 77e2872cf..dad3be9d8 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1172,6 +1172,8 @@ fixed_t P_GetMobjGravity(mobj_t *mo)
 			const fixed_t mult = 3*FRACUNIT + (3 * FixedDiv(mo->player->fastfallBase, unit));
 
 			gravityadd = FixedMul(gravityadd, mult);
+			if (mo->player->curshield == KSHIELD_BUBBLE)
+				gravityadd *= 2;
 		}
 	}
 	else