Megaman ZX Bosses's
Depending on what you're using the sprites for, you may find either the tiles (pieces that make up the sprite) or the assembled version of the sheet more useful.
The assembled folder only contains assembled bosses with complex animation sequence (i.e walking).
Larger, more obvious bosses such as Leganchor only have tiled sheets.
If a boss isn't in the assembled folder, check the Tiles folder and visa versa.