4 islands

Island 1 to island 3:https://b23.tv/ZSVlQKB
Island 4:https://b23.tv/Ohhxo8c
Enjoy it!

I don't even know how to start. The video shows a different B starting position.

Edit - sorry I clicked on the wrong link.

Are tricks needed?

@delator77 So far I had just completed island 1 and there are several tricks used already. I suggest you to do whatever you can think of to solve the level. If you need help on how to start here it is

Spoiler: hint to start

something similar to cutting corners(I dont know if it's the correct name)

@delator77 Yeah.SBS,autopilot and corner trick.

Sorry had to give up on this one. Can complete each island but can't complete them all in one go. Even you as the author when recording the solution video failed and separated into two videos. Disliked the corner trick. Other than that, this level has a few nice moves inside.

@ohmytian Corner trick is easy for me.However, completing it all at once is indeed a bit difficult.Thank you!

Uuhhmm, what means corner trick? maybe BB (Boogie Bot)?

@delator77 Yes, I didn't know its standard name originally.

Step by step... I am in island 2... if each day I complete an island in a couple of days I should be able to complete the whole level ... lets see if this is true

Island 1 & 2... completed... very tricky & difficult with maybe too many risky steps but hey, I am in the right path

@delator77 Island 3 is the simplest. However, it is important to note that the autopilot used must be clicked on the correct position to allow B to climb up the mountain and then down! (Never click on the exit of the cave to autopilot)

@韩国庆 yes, I did it as you said... aarrgghh but then I made a terrible mistake on the island 4 & game over... I also must say that the jump to pass from island 3 to island 4 is not easy (in three or four attempts,only one was successful )... lets see if today or tomorrow I can complete it

@delator77 Oh, I'm really sorry, this jump is a bit unstable. Thank you so much for your repeated attempts.

YES ... Wow, what a relief! I've sweated blood to complete this very, very challenging level, so you can imagine how satisfied and happy I am to be able to complete it. It's true that it has some slightly unstable steps and maybe I missed a couple of recovery points because a slight mistake means starting over. I must also say that BB (Boogie Bot) is an annoying trick for me and B would get stuck quite a few times without being able to go through the hole. But overall I enjoyed (and suffered) this brilliant level with very good logic, especially on islands 1 and 2. All in all, a great level with a very nice design... thanks @韩国庆 great job!
btw, I checked your solution movie & noticed that even you had problems while recording the movie with that jump between island 3 & 4