My 1st win was with R and B didn't do anything so I'll say that was a shortcut and therefore I dropped a star. Your mechanism didn't slide very smoothly and R popped out and hit the win. My 2nd win was with B but I had to be very careful not to pop R out again. Too bad you needed to use hidden with the water level.
@ridgerunner - I believe the answer is yes but I wasn't trying to squeeze R up, R just popped up onto the win.
I drop a star for the same reason of @gmacpro the first time I won without B, the second I believe I did the intended way, but b is not very useful. In spite of everything I really liked this puzzle and the minimalist design.
Fun level although I have doubts if I did it righthere is my way... Spoiler: My way https://photos.app.goo.gl/ZQ37cTSvGAAsERQc6 It's ok? Thanks for sharing and well done @Br0K3N
Fun level although as other players commented already there is a shortcut so B is not needed. Anyway, I repeated it and finished as designed... Thanks!
Your level is... A.C.L.A.F.I.M.! Amazingly! Clever! Logical:mad_O! Accurate(in design)! Funny! Interesting! Masterpiece! And this all in your LEVEL!!! Waiting for new levels from you! Amazingly done! Gmacpro's shortcut is a bit difficult to replicate,so I'll give you five stars