The Firebird tileset is nice, but it was always missing a few things - most importantly, the enemy graphics. While you could theoretically make a quest with the GB graphics used as placeholders, that's not ideal. I set out to make some replacements, and while it took me a few years to finally get around to doing them all... apart from the red/blue permabubbles, and those should be fine with the preexisting graphics
Sprites for the following included here:
-Aquamentus
-Bombchus
-Boulders [large, small]
-Darknuts [in various flavors]
-Digdoggers
-Gohma [in spider and goo pile flavors]
-Goriyas
-Lynels
-Ganon
-Gleeoks
-Moldorms
-Manhandlas [in 1x1 and 2x2 base flavors]
-Patras [in various flavors]
-Spinning Tiles
-Stalfos
-Wallmasters [plus floor/mini versions]
-Wizzrobes [technically already in Firebird, but these ones are much more flexible palettewise]

1/13: actually added in the gleeok tiles. Whoops!

4/29/23: Looked at the aquamentus tiles and saw that the animation was kinda bad, so I went and fixed those up.

Jared, for pushing me to finally finish these up.