5!

Spoiler: Tricks

Bot Stack, Autopilot, Elevated Eye, Cancel Tap (only do cancel tap if B does claustrophobia)

If you see more tricks comment below.

WARNING: Bot stack here can make R fall on top of B.

Spoiler: BOT STACK HINT

Let R go first. Drag slider up when 2 bots are in the slider. Put R on top of small building then put B in the metal corner. Then stack R over B. Tap on stone stair then tap on the draggable then hold it. Tap on stone pillar then hold the draggable.

@Blue Tower - Did you forget a trick?

EDIT - or two?

EDIT - or three? - I see this one is probably the hint?

I found the level at the start a little hard to see but as I went thru the game play, it became less busy. I'm pretty sure that elevated eye is required to redirect R to the metal stairs and B wouldn't get over to the other side without a low ceiling move. The freeze B and walk with R above is very risky as it must be done three times and R may not walk after even the first one. I know you are trying to make your levels more challenging with tricks but please use stable tricks. Was that an auto pilot at the end to get B into the tower? If B just walks out onto the rotor, the motor holds B up and B doesn't fall but if B runs in with the rotor not there, B will fall and that is auto pilot.

FUN level although not fan of that bot stack...Thanks for sharing @Blue Tower

@Meko Guy I forgot about that. Yes, that is autopilot.

@delator77 I was trying to make that bot stack stable, but that is the most stable for me.
But thanks for playing my 5+ followers level.

Interesting moves made level enjoyable.

@Blue Tower

No problem but you didn't update the trick list above?

@Meko Guy I updated it now.
@ridgerunner thanks!

...
one ball is a trap

and bringing R to top floor
by riding it ontop of B is tricky
but easy...

@Ray Aznable Yes, but thanks for P, C, and R!

The beginning part was a bit tight and hard to see but ended up solving the level without using the first two balls and only one R bot.
Totally enjoyed watching B get stuck in the spin cycle in the tower and then tried it again with autopilot and he had a fun tumble!
Exciting level