Which support should be opened first in Level 478?

Use the lower-right blue cylindrical brace and its adjoining wall edge; that peel exposes the orange center without hardening the stack.

When should the orange ring pieces be hit?

Wait until the main wall has folded and the rings stop rolling, then use the exposed low row for the cleanup shots.

The walkthrough fires 18 of 23 balls and clears the level with 5 remaining.

Smash Fest! level guide

expert Target: 18 moves 6 colors

Peel the blue-braced white-and-red wall from the lower-right side, collapse its orange center, and clear the last star panels and ring-faced pieces.

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Hit the lower-right blue brace where it meets the white-and-red panel wall.
Continue through the exposed right edge so the blue side cylinders and brown top beam shed outward.
Wait for the right-side pieces and top ring-faced blocks to settle.
Strike the exposed orange center supports and lower white/red joints so the middle column folds down.
Clear the remaining upper white panels and yellow star blocks from the shortened stack.
Let the round orange ring pieces roll away before firing at the low platform row.
Break the separated star panels and the remaining orange-and-white cluster from its exposed side.
Finish the last upright or ring-faced remnant and wait for the clear animation.

Colors in this level:

White, Red, Orange, Blue, Yellow, Brown

Starting on the center face before the blue right brace opens leaves the orange core supported and spends shots on the shell.
Firing at a rolling ring-faced piece during the side collapse can miss the newly exposed support and shorten the endgame reserve.

Break the lower-right blue brace before touching the center panel face.
Let the top beam, side cylinders, and round orange pieces finish moving before choosing the next support.
Work across the low row from an exposed side and leave rolling rings alone until they stop.

Board notes 5 details

Layout: A tall wall of white panels with red bands and yellow stars surrounds orange center canisters; blue cylindrical braces flank it beneath a brown top beam with orange ring-faced pieces.
Goal: Open the right frame, fold the central panel-and-canister stack, and remove every star panel and orange round piece from the blue platform.
Opening: Put the first shots into the lower-right blue brace and adjacent wall edge so the side cylinders shed outward and expose the orange center.
Danger Zone: Shooting the center face while the blue brace is intact leaves the tall column boxed in, and firing into ring-faced debris before it settles wastes the cleanup window.
Mechanics: A right-side framed peel turns a rigid white/red/orange wall into a leaning center stack followed by rolling ring-and-canister cleanup.

Which support should be opened first in Level 478?
Use the lower-right blue cylindrical brace and its adjoining wall edge; that peel exposes the orange center without hardening the stack.
When should the orange ring pieces be hit?
Wait until the main wall has folded and the rings stop rolling, then use the exposed low row for the cleanup shots.
What is the recorded shot count?
The walkthrough fires 18 of 23 balls and clears the level with 5 remaining.