R to the rescue (v1.5)

Welcome to my fourth creation, I won't go easy on you this time player. Before ending this message, I'd like to thank @gmacpro for telling me where the bugs was, there is no bug for you now. XD

P/S : the red light cube is under the tomb, you need to drag the beneath cover a little bit to see its dark red light. That's all, have fun guys. Please turn on the free camera mode on for the best experience.

In this version, i fixed some minor bugs which would crash the gameplay, cleared some tubes to look easier, added the stair at the windmill so you don't need to start over again.

I do like the stairs as a recovery point if one doesn't see the intended way and screws up. On my 1st attempt, the ball missed so B tried the windmill bump to see if B would stay on the level versus ending up on the surface and it worked nicely. Restarted to try the ball drop again, guess what, the ball just missed. Not impressed and considered going with only 3 stars for a risky move so close to the end. Gave it one more attempt and it would be my last attempt and I'll say I was lucky on the ball drop as it certainly didn't fall with precision so too bad you went with that end move.

@gmacpro or you can do this for a better result, works for me every times.

@Huỳnh Thành Nam - Yes - That is what I did but since this is your level and you created that section, you had more practice than I. In other words, I'll assume you did it more than 3 times like me.....

Nice level, crazy structure. Huge shortcut right at the beginning. B can be sent flying to the win stairs from pillars head. Too much shortcut potential at all. You can easily send B off to the white, where he can climb back at the corner right next to the win.