Monorail Escape v2

I'm getting used to the "bugs" of the Mekorama environment. As such, this is a wonderful level. Thank you @retrograde !

@Sunny Sunset this is a fully playable level. I'm using a Nexus 5 with a splintered screen.

You can try re-reading all the hints from before, but if you are still not able to get B on the ball before rolling it, try my spoiler. I do agree, however, nothing is more frustrating than having to rely on precision, particularly as the last step in completion.

Spoiler

The dark hidden slider under the wedge piece does appear to do nothing when opened, but it in fact allows the main slider to slide perpendicularly. After getting B up on the rail (with the other hidden slider) ask B to go to the brown non-marked part of the main slider (the part that is flush with the floor). Before B gets there, move the main slider over that spot. B will then be forced to climb onto the main slider from where you can get him to the ball. Move the main slider back and then carefully shoot the ball with B on it. I find it easier if B is facing in the direction of travel of the ball. Please let me know how you make out. Good luck!

You surely do make good use of two-way sliders

Excellent level