Most reviews I've seen show how to connect the wings to the backpack, gray side forward, but have the backpack extended out from the back. I wanted to mod my Bomb-Burst so his wings could be attached to his backpack, with the backpack compressed.
The mod is simple, and quick. Just cut a little notch on each side (see the last picture).

Bomb-Burst with wings and compressed backpack:




What to mod - cut along the green lines, the final mod should look like the opposite side


(If someone else has already posted a similar mod, apologies. I did a search for Bomb-Burst and didn't see one)

 

Nicely done!
I suspected it would be a simple solution like this the first time I saw him revealed.

 

I just did the same to mine, very simple mod that adds a lot to the toy! Very cool, thank you for posting this!