The Sacrifice v2

How can I solve this please ? !

How far did you get? Getting up to the first tier is a bit tricky.

This is one crazy level. It requires a number of tricks to complete. Here are the steps needed to solve it.

I would suggest peeking at only one clue at time, trying it out, and only going to the next clue if you're really stuck.

Spoiler: Hint #1

There is draggable block at the near the motor at the bottom level of the volcano. Figure out what this does.

Spoiler: Hint #2

Pull this draggable block out. You'll see the metal block on the other side has slide into the volcano. Next put B-Bot on the grass right in front of the hole on the other side (this will give him the longest runway). Now click on the spot where the metal block that got pulled in used to be. When B-Bot starts moving, quickly pan the view back the slider that was pulled out... now quickly push it in. Then quickly pan the view to the bot to see what happens. When B-Bot reaches the spot it'll climb up to the next level. This is a "focus" lift.

Spoiler: Hint #3

Walk B-Bot to the next side the mountain. The brown block has a hidden draggable block. Pull it out. Move B-Bot in the space behind the block just pulled out. Now jam the slider back in. This "squeeze" lift will push B-Bot up to the next level.

Spoiler: Hint #4

Pan the the view on the side with the motor block. Drag vertical arm down so that it is horizontal. Pan the view so that you're looking at the ball bar straight on horizontally (an angled view can lead to the ball falling off early). Next put the bot on the ball and tilt the beam that the ball is on gently. Make sure the ball moves slowly. When the ball reaches the end quickly move B-Bot onto the horizontal motor bar that was previously vertical before the ball falls off.

Spoiler: Hint #5

With B-Bot on the horizontal motor bar make the bar vertical. The bot will pop up to the top. This is another kind of "squeeze" lift.

Spoiler: Hint #6

Use the 2-way slider to get B-Bot across the next slide. It slides right then forward.

Spoiler: Hint #7

You next find a slider with 3 positions. Move the slider to the far right. Now select the spot just before the slider to make B-Bot move to it. Very quickly, move the slider the far left. B-Bot will jump the slider.

Spoiler: Hint #8

With the slider B-Bot just jumped to the far left, place B-Bot just to the right of it. Now use the slider to fling B-Bot to the right. With enough force (but not to much), he'll pop up 2 blocks higher.

Spoiler: Hint #9

Now take B-Bot up to the top the volcano. Take the elevator down. On the side of the volcano with the motor you can see a opening where the lift reaches the bottom. Click in the that area when the elevator reach the bottom and B-Bot will get off at the lower level.

Spoiler: Hint #10

Locate the highest ball on the volcano. Put B-Bot between it and the slider. Pull the slider to the right of B-Bot out. Then use the left slider to push B-Bot against the ball. The ball will fall in the hole. Don't touch the slider with the ball in it just yet.

Spoiler: Hint #11

Send B-Bot back to the elevator cave. He needs to take the elevator back up. Keep clicking in the hole where B-Bot came down. When the lift comes down B-Bot will take the lift back up. When B-Bot reaches the top, hop off but stay on the volcano rim.

Spoiler: Hint #12

Return to the slider with the ball in it. When the elevator on the way down (look through the window with fire in it) gently start pushing the slider in. When the elevator reaches the bottom the slider will move all the way in and "fire" will appear on the top of the volcano!

Hint #13: Jump in!

Wow. That was a really hard level! It took a very long time to solve it without hints.

@idlestate I'm impressed. Yeah, the level uses a number of lesser known physics properties in the game. I tried to make it a bunch of mini-puzzles that had to be sorted out. My favorite is the horizontal slider on the 5th tier of the volcano.

This is by far the best level I've seen yet. And I have played some 150 levels. Very! hard to do without the hints, because it uses physics/flaws of the game I didn't know. And you can't take shortcuts or make a ball fall in the volcano.

Great level. Required 2 hints, partially to the many decoys.

Fast and fun level

Spoiler

I made it without balls.After getting on a top of mountain I just used an autonavigation trick to hit the win

Reviewing unfinished levels... and finally solved. Simply brillant. SIX starts! @retrograde come back! Thanks!

Wow!!Amazing logic/tricky level!!!I enjoyed a lot!! Thanks

I had fun in this level! My favorite is the free-draggable. It moves almost flawlessly.

I have some alternate moves that I did. The ball above the rotor is unnecessary if you know that the raised end of the rotor can be passed by B. Using the ball is also unstable.

For the draggable with two stair blocks above, I pressed the lower stair block then dragged the draggable right away. This kinda works like autopilot. The move will bring B to the higher stair block. This move is not always happening but it does happen.

Thanks for sharing this level, @retrograde!

Got B into the volcano easily, but I agree with @P_simorf on the ball being unstable on the tilt bar. Didn't use all the level either. I expected more.
Still, fun stuff.