The file for the boomerang extended sprite is poorly formatted; I can barely follow what is going on in the file because of everything being on one row of text. As a result, I'm particularly clueless on how to change the palette the boomerang uses so that its shading is what it shows to be in the screenshot.
The sprite itself for some reason does not want to pick up the boomerangs it throws. Every time I used it, the boomerangs fly past it and off the screen, like the other boomerang bro sprite on this site.
If these two things are fixed, I would be content with this sprite.
Edit: This sprite is sometimes immune to koopa shells thrown at it; it's selective on which levels or circumstances cause this, so I am not sure if it is due to the sprite's coding alone.
Converted to PIXI and added SA-1 compatibility. I also fixed a bug in the original which corrupted $1602 for the sprite in slot 0 or 1. A nice and easy to use Boomerang Bro. Using extended sprites is a massive advantage because the boomerangs won't create as much slowdown and won't take up sprite slots.
Also includes a JSON file which can be used instead of the CFG file with PIXI 1.2 or above.
This was originally part of Sonikku's C3 2013 sprite pack and was submitted to the section with his permission.