One strategy for Angry Birds Bad Piggies level 21-6 is to fire the Yellow bird through the three ropes in the middle of the level. The boulder and cart will fall, and the bird should ricochet off the bumpers and into the wooden support of the pile of stones above. While it won’t occur every time, the falling blocks will usually destroy the cart and the pig within. The score in the video below is 91,850.
If you have a different strategy feel free to leave a comment below; however, don't just post your score via the comments, as that's what the leaderboards are for.

Same as in video, apparenty more debris possible….
This is a simple enough level, follow the video, keep playing and keep scoring higher and higher.
Follow the video and sooner or later you’ll get an acceptable score. There is only one option for getting a 1-bird solution.
96980 – All I am missing for more points is that golden wrench.
Once again I find myself asking the great Manu for help. @eweber, @thetoddman23, & thetoddman23 always seems to be hot on his tail — Did you use the same strat as everyone else, or is there a different, higher scoring strat? Any additional tips greatly appreciated. Thanks
No used a strat found by ernor. Shoot at the boulder in such a way that the bird is deflected, reach the trampoline and topple the stones. You want the boulder to break the little tower and roll down the hill. The stones fall as usual. Extra points comes from the little tower and stones crushing the boulder.
@eweber — Thanks! There is a world of detail in “such a way.” Will have to try again tomorrow morning.
@mvnla2 – What Manu means by “in such a way” is to actually hit the boulder directly. You want him to hit the top of the boulder ( slightly top left)and accelerate last minute so that after the YB hits the boulder, his body will deflect off the boulder, cut the rope and he kinda “bounces” through the middle and on up to the bouncer. He should then bounce up to hit the wood piece holding the cement planks like normal. Meanwhile, the fallen boulder will hit and break up the little tower the pig holding the key is on and roll on down the hill.
It’s not an easy shot but I got it to work several times. I included a screenshot that may help with the trajectory:
http://angrybir.de/UAw7RY
As you will see, I did not get the top golden key. That will take some more tries and a lot more luck ;-)
Thank you @eweber !!!
Yep, exactly what Manu said. The main thing I had to figure out is the angle on the boulder. Its a slight arc and accelerate just before impact on the boulder. Takes a lot of trial amd error but when you hit it you will know.
To line up the shot, zoomed out on ipad – in the background left of the sling is a patch of orange. Pull the sling back & raise it so the top of the sling is at the top of this orange patch, & accelerate late right before the boulder. It’s still a lot of hit & miss, the toughest part was getting the right bounce off the trampoline to hit the small wood supporting the stones up top, it usually hit too high, & I’ve never managed to get the gold wrench.
Thank you @eweber for the post. It worked great.
Aimed the Yellow Bird at the top flat spot on the stone boulder and activated just prior to impact. Most of the time the YB went high into the stones above but twice it hit the vertical wood plank supporting the stones. With the second time the above stones destroyed the boulder as it rolled.
Thanks @eweber, took a few tries to finally hit the right deflection.
thanks for the strat @eweber ! it took a few tries but, I finally got the average…barely! LOL!
by way, that’s a 2 bird score with the golden wrench, will come back later to try for a 1 birder.
Holy moly… I think I’m more likely to win the lottery.
@mvnla2 i just kept repeating the video and just cracked 100k so out can be done:)
I can’t figure out the boulder strategy.. Good luck:)
Nice score @kathy, and thanks for giving me some hope of improving my own score;) That boulder shot is giving me fits!
These wrenches are hard to take. I tried so hard but never got one of them but the video is one of the best for this level
Update: improved score to 97280 due to applying different strategies, thanks to all.
@Kathy I know your a wee bit behind me since I started earlier, when you get here I actually on my first try 3*d this for 97k and change by doing what it appears Manu and Todd did. Since then I’ve been able to up my score some although 100k eludes me! (those wrenches are made with titanium, the gold one has never popped! :/) so I’d go with that strat when your ready to hit avg. that stupid cart will not fall off the ledge either, it stops at the edge every bloody time!! See you when you get here! :)
Self-destruction reported by @Kimmiecv — I’ve seen it also on first attempt to wait: 5220; suspended cart with pig starts swinging, and eventually knoks pig on wood platform on left off. Cart continues to swing and starts knocking wood platform. Is total self-destruction possible? What happened to conservation of energy?
I’ve been watching the cart bounce back and forth between the wooden tower and the trampoline for at least five minutes now. No other damage appears to be forthcoming. And my score is only…never mind. I was going to complain that my score is only 5210, but now its up to 5260. I guess if I wait all day I could get a high score. Maybe I shouldn’t have mentioned that! 5350 and rising…
OK, the wooden tower eventually breaks. So no running up impossible scores.
For the mortals amongst us! Just keep firing as per the video. What you need is the gold spanner and the wooden plank in front of it, to fall, as well as the stone blocks. If the plank falls correctly and hits the spanner it breaks. I believe that when this happens you will have usually hit the sweet spot on the trampoline and everything falls into place for 100k +. Good luck.