Colony Flow Level 409 Walkthrough Solution & Guides | How to solve Colony Flow 409
Guide By Liam Stone
Updated on July 29, 2026
The video above has you covered on Level 409, so skip the text if you'd rather watch it play out.

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Welcome to Colony Flow Level 409. This board gives you a cute pixel art hedgehog to clear but wraps it in some serious obstacles from the very first second. You have to deal with locked blocks and paired items right from the start of the puzzle. I played through this one multiple times to find the safest path that keeps the waiting slots completely clear. You need a solid strategy to break down the massive wall at the bottom without trapping yourself.
Colony Flow Level 409 Overview
What You Are Working With
The board features a large hedgehog sitting in green grass against a light blue sky. A dark purple tree trunk sits on the right side and red apples hang from branches on the left. The bottom of the board is entirely blocked by a massive chocolate barrier. This chocolate wall has a large number 500 stamped right on the front of it. You will also spot five colored keys scattered across the picture. A red key sits near the apples on the left. A blue key rests on the left side of the sky. A yellow key is positioned right on the hedgehog face. A green key is hidden in the grass at the bottom middle. A purple key sits high up on the right tree trunk. Your tray at the bottom of the screen is full of Connected Boxes. Pulling one of these blocks automatically pulls the block it is linked to. You also have locked blocks in the tray that require you to collect the matching colored key from the board before you can pull them.
What It Takes to Clear Level 409 Board
You win this level by clearing every single tile of the hedgehog picture without filling your five waiting slots. The main challenge comes directly from the Connected Boxes. Because pulling one block pulls another alongside it you burn through your five available slots twice as fast. You must always ensure that at least one of those colors has an open path to the board. If you pull a connected pair and neither color can reach its target you risk an instant loss. The chocolate barrier at the bottom adds a huge layer of pressure. It does not block the ants completely but it forces them to walk all the way around the outer left or right edges to reach the picture. Every single tile your ants eat reduces the number on the chocolate barrier. You have to clear 500 tiles to break the chocolate and open the direct path up the middle. Collecting the keys is your secondary objective. You must route your ants to the keys to unlock the rest of your tray blocks so you never run out of moves.
Colony Flow Level 409 Step by Step Solution
Step 1: Open the left side by playing the first set of yellow and light blue connected boxes
Your first move requires getting ants onto the board immediately to avoid a slot jam. The bottom is blocked by the chocolate barrier so your ants must travel up the left outer edge. Look at your tray and find the yellow block connected to the light blue block. Pull this pair into your waiting slots. The yellow block will not find an immediate path but the light blue ants will stream up the left side of the chocolate barrier. They begin eating the light blue sky tiles. This is the perfect opening move because the sky covers a huge portion of the top left corner. The light blue ants will keep busy for a very long time. This guarantees that your slots will not jam early on. As the light blue ants eat the sky tiles they will also grab the blue key sitting on the left edge. Getting this blue key instantly unlocks the blue locked blocks in your tray for later use.
Step 2: Send red ants to the apples and collect the red key
Now you need to put more pressure on the left side of the board to keep the momentum going. Locate the yellow block connected to the red block in your tray. Pull this connected pair into your waiting slots. The red ants will follow the path up the left side and branch off to target the red apples near the edge. There are enough red apples to keep these ants moving and clearing tiles out of the way. More importantly the red ants will run right over the red key. Collecting the red key is a massive priority for your progression. It unlocks the red lock sitting on a very important purple block in your tray. At this point you have multiple yellow blocks sitting in your waiting slots. They might not move yet but your light blue and red ants are actively clearing the board and keeping the game flowing safely. Every tile they eat also chips away at the 500 count on the chocolate barrier.
Step 3: Unleash the purple ants to devour the hedgehog body
With the red key collected you can now access the purple block that was trapped behind the red lock. Pull this newly freed purple block into your waiting slots. The purple ants will take the long route around the right side of the chocolate barrier. They will march all the way up and start eating the dark purple tiles that make up the main body of the hedgehog. The hedgehog body is huge and dense. Sending the purple ants early ensures a steady stream of tiles being cleared over a long period. This massive clearance is exactly what you need to drive down the chocolate barrier count quickly. Your waiting slots might look a bit crowded right now but the purple ants and the light blue ants are working simultaneously to keep the board moving. Never pull another block until you see that your current active ants are thinning out.
Step 4: Bring in the green ants to clear the grass
The light blue and purple ants are doing heavy lifting but you need to start working on the bottom middle section. Find a green block in your tray and pull it into your waiting slots. The green ants will run up the sides and start eating the green grass tiles surrounding the hedgehog. The grass provides a great target because it spans the entire width of the board just above the chocolate barrier. As the green ants eat they will inch closer to the green key hidden in the bottom middle of the grass. Meanwhile the purple ants continue to chew through the hedgehog body and the yellow ants in your waiting slots might finally find a narrow opening to reach the yellow feet of the hedgehog. Let the ants work and watch the number on the chocolate barrier drop rapidly.
Step 5: Secure the yellow key and clear the hedgehog face
As the purple ants eat the body they will expose the yellow face of the hedgehog. This creates a valid open path for the yellow blocks that have been sitting in your waiting slots. The yellow ants will rush in and eat the face tiles. In doing so they will collect the yellow key located right on the nose of the hedgehog. Grabbing the yellow key unlocks another critical set of connected boxes in your tray. The board is now wide open on both the left and right sides. You will notice the chocolate barrier count is getting very low at this stage. Keep a close eye on your waiting slots. Whenever a block empties out completely you can safely pull the next available connected pair from the tray. Always prioritize pairs where at least one color has an immediate clear path to the picture.
Step 6: Break the chocolate barrier entirely
You are now entering the late stages of the board where the pressure starts to drop. Pull the next set of connected light blue and green blocks. The light blue ants will finish off the remaining sky tiles at the top left. The green ants will swarm the remaining patches of grass near the bottom. As these ants clear their respective colors the total tile count will drop all the way to zero. The massive chocolate barrier at the bottom of the board will instantly shatter and disappear completely. This is a huge relief for your routing. With the chocolate gone your ants no longer have to take the long detour around the outside edges. They can march straight up the middle of the board from the nest hole. This drastically shortens the travel time and allows you to clear the final sections much faster. The green ants will also pick up the green key during this massive wave of clearing.
Step 7: Reach the top right tree and collect the purple key
The only major section left is the dark purple tree trunk on the far right side of the board. The purple key is sitting right on top of it waiting to be collected. With the middle now wide open pull your remaining purple blocks into the waiting slots. The purple ants will shoot straight up the right side and rapidly devour the tree trunk. They will easily reach the purple key and unlock the final locked block in your tray. You might have some stray green or light blue tiles left scattered near the top. Use your newly unlocked blocks to send the final waves of ants. Because the chocolate barrier is gone these cleanup ants will reach their targets in mere seconds.
Step 8: Clear the final straggling tiles
The board is nearly empty now and you are perfectly set up for the win. You will likely have just a few blocks left in your tray. Pull them one by one into your slots. There is absolutely no risk of jamming your slots at this point because the paths are completely clear and the travel distance is extremely short. The last few purple ants will finish the tree and the final light blue ants will eat the last specks of the sky. Watch the final ants return to the nest and enjoy the satisfaction of a fully cleared board. You navigated the connected boxes perfectly and broke down a massive obstacle to secure the victory.
Final Thought
Clearing this board requires serious patience and careful management of your waiting slots. The connected boxes can easily trap you if you pull them at the wrong time. Just remember to always focus on opening paths first and let the long streams of ants chip away at that massive barrier. If you find yourself getting stuck or jamming your slots during the opening moves please watch the video above this article. Seeing the exact timing for pulling the connected blocks makes a huge difference in beating this tricky puzzle.








