diff --git a/asteroids/actors.lua b/asteroids/actors.lua
index c0ca225..ceb84c1 100644
--- a/asteroids/actors.lua
+++ b/asteroids/actors.lua
@@ -8,7 +8,8 @@ function actors.buildActors(game)
     local asteroids_mt = { __index = asteroids }
 
     function asteroids.new(asteroid)
-        local stage = game.asteroids.stages[asteroid.stage or #game.asteroids.stages]
+        local stageIndex = asteroid.stage or #game.asteroids.stages
+        local stage = game.asteroids.stages[stageIndex]
         local instance = {
             angle = math.random() * phys.tau,
             speed = stage.speed,
@@ -20,6 +21,7 @@ function actors.buildActors(game)
         for k, v in pairs(asteroid) do
             instance[k] = v
         end
+        instance.stage = stageIndex
         setmetatable(instance, asteroids_mt)
         return instance
     end
diff --git a/asteroids/main.lua b/asteroids/main.lua
index 43c7c43..4d242be 100644
--- a/asteroids/main.lua
+++ b/asteroids/main.lua
@@ -127,32 +127,18 @@ function love.update(dt)
                 if asteroid.stage > 1 then
                     local angle1 = love.math.random() * phys.tau
                     local angle2 = angle1 - phys.tau / 2
-                    local stage = game.asteroids.stages[asteroid.stage - 1]
-                    local radius = stage.radius
-                    local speed = stage.speed
-                    local sprite = stage.sprite
-                    table.insert(state.asteroids, {
+                    table.insert(state.asteroids, state.actors.asteroids.new({
                         x = asteroid.x,
                         y = asteroid.y,
                         angle = angle1,
                         stage = asteroid.stage - 1,
-                        radius = radius,
-                        speed = speed,
-                        facing = math.random() * phys.tau,
-                        spin = 0.1 + math.random() * 0.1,
-                        sprite = sprite,
-                    })
-                    table.insert(state.asteroids, {
+                    }))
+                    table.insert(state.asteroids, state.actors.asteroids.new({
                         x = asteroid.x,
                         y = asteroid.y,
                         angle = angle2,
                         stage = asteroid.stage - 1,
-                        radius = radius,
-                        speed = speed,
-                        facing = math.random() * phys.tau,
-                        spin = 0.1 + math.random() * 0.1,
-                        sprite = sprite,
-                    })
+                    }))
                 end
                 table.remove(state.asteroids, asteroidIndex)
                 break