diff --git a/games/boybomb.p8 b/games/boybomb.p8
index 7f59398..dec232b 100644
--- a/games/boybomb.p8
+++ b/games/boybomb.p8
@@ -192,7 +192,7 @@ function add_explosion(gx, gy)
             x=x, y=y, 
             vx=(rnd(1)+1)*cos(angle),
             vy=(rnd(1)+1)*sin(angle),
-            age=rnd(5),
+            age=30+rnd(10),
         })
     end
 end
@@ -208,19 +208,19 @@ function update_explosions()
         local p = particles[i]
         p.x += p.vx
         p.y += p.vy
-        p.age += 1
-        if p.age > 25 then
+        p.age -= 1
+        if p.age <= 0 then
             deli(particles, i)
-        elseif p.age > 20 then
-            p.color = 10
-        elseif p.age > 15 then
-            p.color = rnd({9, 10})
-        elseif p.age > 10 then 
-            p.color = 9
-        elseif p.age > 5 then
-            p.color = rnd({8, 9})
-        else
+        elseif p.age > 40 then
             p.color = 8
+        elseif p.age > 30 then
+            p.color = rnd({8, 9})
+        elseif p.age > 20 then 
+            p.color = 9
+        elseif p.age > 10 then
+            p.color = rnd({9, 10})
+        elseif p.age > 5 then
+            p.color = 10
         end
     end
 end
@@ -304,6 +304,7 @@ function update_level()
         if bomb_spr.speed == 0 and bomb_spr.anim then
             exploding = false
             bomb_spr.frame = 0
+            bomb_y = 0
         end
     end
     if t() - last_gravity > fall_speed then
@@ -363,7 +364,7 @@ function update_level()
         explode()
     end
     -- fall immediately
-    while bomb_y < GRID_H and puzzle_grid[bomb_y+1][bomb_x] == 0 do
+    if bomb_y < GRID_H and puzzle_grid[bomb_y+1][bomb_x] == 0 then
         bomb_y += 1
     end
 end