Trap Guard

Spoiler: Video Solution

My win was similar but i had a bit more freezing. One ball was not needed.

@ridgerunner -

Spoiler

Was it the corner ball?

@Meko Guy ..yes

@ridgerunner - The game play changed as the level developed so in the end, I just left it there. Thanks for P, C and R.

...
breathaking
due to catching up before P.

at beginning I used a trick,
which is autopilot to make B
fall to watery pipe, then push it hard
using slider, to make B fly over blocking stair.
that way, is alternative for freezing P.

and yes, as @ridgerunner said,
that one ball is just for cosmetic.

Great logic level full of traps... I had to think every step carefully ... thanks for sharing & for the fun @Meko Guy