Unsafe castle

Spoiler: Hidden

Nothing is hidden except the tunnel

Best title of a level that i can remember for a while.

Thank you @ridgerunner

It is possible that this design is a copy of some level. But I did not copy it from any level or picture, rather I created this design myself.

Wow. I thought about it for a long time, searching for a clean, without trick way. But I couldn't find anything. I was about to give up and watch a video. But there wasn't one, so I decided to think again. I tried something a bit less traditional for mekorama. And it worked.
There are no tricks for B, but! I still think there is a trick for R(L)!:

Spoiler

long legs

, and the R(L) bots' manner

Spoiler

of walking from stairs onto impassable blocks is used

.
I "broke my brains" trying to figure out how to get past this level. Because I expected something completely different from this level, I thought it was a pure classic.
It was a very unusual move.
A very beautiful level and castle! Thank you.

@Denis Nazin…the title was a great clue.

@Denis Nazin I'm glad you liked it. Thank you very much.

I knew that he had long legs.
There are some things that I'm not sure if they're a trick or not. So, now whenever I include these things, I won't write "no trick." Now I have edited it.{I found the trick list but it doesn't include everything in Mekorama.}I know a little bit, so I won't make such a mistake again.
Whatever you have used, everything is included in me and that is the gameplay.

I need Denis's hints about the trick
Because I thought before the key movement was hidden in the tunnel
The part I like is that you are able to use the design as part of the game.
The part that needs improvement for me is that L and R should be more involved in the game.
Very cool puzzle and amazing castle

@alarcon I'm so glad That you liked my level and the way I created levels.I don't want to make the levels too long, so I didn't think much more about it.The duration of some levels may be longer and that of some levels may be shorter.