What should be protected on Level 450?

Keep the yellow key and cyan lock routes available while the first red and blue waves return; they expose the central and lower bands.

Why does the board continue after the red field is gone?

The blue-purple and cyan lower strips are separate queues, and the last 28/30/32 cards appear only after the upper layer has cleared.

Colony Flow! level guide

expert 8 colors

Open the red 23/pink 22/blue 40 opener, protect the yellow and cyan lock lanes, and peel the final red-and-cyan landscape into its scattered strips.

If the player asks you to sign in, open the video on YouTube instead.

Tap red 23, pink 22, blue 40 and red 30, leaving the fifth hole available for a return.
Route the next red 30/27/21 wave one lane at a time as the upper field peels.
Keep the yellow key and cyan lock untouched until a red or blue hole returns.
Use white 35, pale-cyan 24 and blue 45 to open the central pale shape and lower scene.
Alternate red 20/21/30 with pink 35/36 and cyan 24/30 as the locks become available.
Clear the red upper band and pale center before another long cyan or blue stack.
Route the lower blue-purple strips with blue 28, dark-purple 15/28 and cyan 25/32 returns.
Save red 1/5/6, pink 4/6/9 and white 1 for the final scattered pixels.
Finish the cyan bands, blue-purple blocks, red fragments and lock-released 28/30/32 pieces.
Wait for every ant to leave the broad empty frame and confirm the Level 450 clear cue.

Colors in this level:

Red, Pink, Blue, Cyan, White, Orange, Purple, Yellow

Opening the second red 30 wave together with cyan 24/45 fills the tray before the yellow and cyan lock lanes are usable.
Spending the short red, pink and white cards early leaves the final layered strips without a clean finishing lane.

Board notes 5 details

Layout: A wide red, pink, blue and cyan layered scene has a pale central figure or cloud shape, red upper bands and separated blue-purple lower strips. The opening route shows red 23, pink 22, blue 40 and red 30, followed by red 30/27/21/30/30, yellow key, white 35, pale-cyan 24, cyan lock and blue 45.
Goal: Open the yellow and cyan lock lanes, clear the red upper field and pale center, then remove the blue-purple lower strips, cyan bands and final pink/red fragments.
Opening: Start red 23, pink 22, blue 40 and red 30 in order. Let the first red lanes return before the second 30-count wave, preserving the key, white and cyan lock routes.
Danger Zone: The red 20-to-30 stacks can fill the tray while cyan 24/45 and blue 40 still cross the lower scene. Opening both lock lanes too early hides the short pink and white cards needed for the final strips.
Mechanics: A broad landscape board uses two lock-colored lanes and parallel red stacks. It clears from dense red upper field to pale center, then blue-purple and cyan lower bands, with small 28/30/32 cards released late.

What should be protected on Level 450?
Keep the yellow key and cyan lock routes available while the first red and blue waves return; they expose the central and lower bands.
Why does the board continue after the red field is gone?
The blue-purple and cyan lower strips are separate queues, and the last 28/30/32 cards appear only after the upper layer has cleared.