One strategy for Angry Birds Bad Piggies level 21-15 is to bounce Big Brother off the boulder and through the plethora of balloons beyond. The goal of this shot is to clear all pigs from the right side of the level, including the heavily-ballooned one in the middle. Use one or two Big Brothers to destroy what remains on the left side of the structure. The score in the video below is 152,740.
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.


1st bird lower than the video, knocking into the stone parts as well as the boulder. With luck, took out the entire right structure and a lot of the left one too. 2nd bird up and over to the bounce pad and back into the left structure to finish up. Also had 162k with 3 birds, first bird as above but all pigs killed in left structure, 2nd bird takes out right tower, 3rd bird into left structure debris for extra points.
Up to 165700 on the 3 bird option above.
@AMSlimfordy — Are you going to do ME walkthroughs for these, or have I just not found them? This is the only BPgs level I don’t have the feather on. Would appreciate some help. Thanks
On YouTube already. Will do posts this afternoon.
@mvnla2: If you still need help, our post is live. This is without a doubt the hardest feather in the bunch, but there’s a big key/hint I was nice enough to include. :)
Thanks! I found video on YouTube and was able to get feathers. Now have all feathers (at least those you don’t have to pay for).
Same method as the video and managed a one birder for a score of 170690.
I’m wondering if a one birder is the best way to get such a high score.
This level was way easier to finish than the previous one, 21-14. That was a ball ache!
I got 168k with three birds, but there were still some points left sitting there. Hard to say which way is easier, but first shot will likely always be more or less the same with varying results.
3 birds for 168k. First bird straight to the stones, second bird low to the right structure, and third low to the left structure. Very little debris remaining.
http://angrybir.de/UHs6vR
Well, at least this was a fun level with the bouncy thingy that does the most incredible things with errant shots, so even an amateur like myself can hope to score much higher.
1st BB off of the boulder, takes out top of left structure, ballooned pig & carries onto right structure which BB & boulder together take out completely including bottom TNT
2nd BB into top hollow block taking remainder of left structure
Nice score @earthbound! Followed your first bird just clipping the top of the boulder. Worked like a charm, but I was too transfixed to fling the second bird for additional points so I was left with my one bird score of 171k.
Thank you @earthbound for the post which is basically what I did with just a slight modification in that I launched the first Big Brother into the little stone and boulder and then immediately launched the second BB into the wood and hollow stone on the left.
Aiming tips: Have the bottom of BB touch the tree top in the background and then have the second BB just cover the white dot from the trail of the first BB.
Obtained a one-bird solution with hitting the boulder but only yielded a score of 155k.
1st bird horizontally into the first structure. About 1 in 10 all of the left structure will fall. Target score 80k.
2nd bird high arc, through balloons and into right structure. 165k but there there should be a lot more points to collect. This strategy is repeatable in the sense that it doesn’t rely too much on luck, but that second shot is very hard. If the second bird doesn’t clear the right structure a third pig can be used to get 160k+ scores.
This one takes a long time to score. I had a board bouncing on the left pad for 100 points that totaled up to around 2.5K before it stopped and posted my score.
Started from left though the small wooden piece in a low arc. He cuts though the structure and lands in the small ridge with the rubber. Second one to the right through the balloon pig.
Lucky 1 birder for 176,800 – First shot to the boulder which takes boulder and bird to the right structure. The right structure then collapsed to the left hitting the bouncer and destroyed the right side of the left structure, which then proceeded to fall to the right.
Nice score!
Hmmm, another score in the mid 170s, also off the boulder. I know what I will be doing today ;)
Very nice score @thetoddman23! I also got a one-birder, but that would’ve given me only 140k+. Going to keep trying the shot to the top of that boulder!
Finally – my first high score! Two birds like many here, only the left structure remaining but very damaged, all wrenches cleared, perfect destruction with second bird, still some debris left so 180000+ possible.
Whoa!! Lol i hit the balloons but 2 of them remained with pig in crate intact…it wildly blew around knocking stuff down and ultimately popping itself!! Funniest thing..didn’t help with score but fun to watch..
I dont know if this belongs to the “self destructing” forum, but still, the blue baloon next to the top helmet pig on left structure popped by itself, but with no effect.
Thanks for all the great strats – tried them all, but in the end the one that worked was Big Red into the top stones – had great fallout, with only little oinker on the right to get – and obliterated him with second Big Red. Obtained the achievement of 173K in points, which is almost 20K from where I was.
So much debris remaining that I decided to sling a third bird. Got about 15k with third bird. For 169,900.
Before launching the first Terence, the blue balloon popped on its own. The horizontal plank above it dropped onto the helmeted pig but nothing else happened. It gave a headstart score of 100 points.