@Doc von Schmeltwick
Blue Wizzrobes and Blue Darknuts are only more difficult due to numbers. A single Blue Darknut could be dispatched very easily with only 2 strikes from the Magical Sword, whereas Patra requires 3, but only after you've killed it's 8 orbitars, which each require 2 strikes from the Magical Sword to kill. And in terms of size? Well, a single Wizzrobe, and most enemies in the game by the way, requires 2 sprites to represent it, and by sprites I'm refering to an 8x16 graphic present on the sprite layer. While the central Patra creature also requires two sprites to represent itself, it's not the whole of the creature, as the 8 orbitars also count as being part of the larger monster, seeing as the need to kill them in order to fully slay the monster. This brings our total sprite count for Patra up to 10. For reference, Aquamentus uses 6, Dodongo uses 2 for it's upwards and downwards movements and 4 for it's left and right movements, Manhandla uses 10, Gleeok uses 6 for it's main body, 1 for each head (limit 4), and 2-3 for the neck pieces, Digdogger uses 9 with it's smaller entities using 2 each, Gohma uses 6, and Ganon uses 8. In terms of number of sprites required, Patra has more in common with the boss creatures than the standards mooks.

@MisterMike Exactly my point. They aren't bosses in those cases. Just large-sized, sometimes-powerful enemies. Blue Darknuts and Wizzrobes are more powerful than a lot of these and appear alongside them, as fellow generic enemies. And Patra doesn't even have the "large size," it's just a clump of eyes.

@Doc von Schmeltwick
I've been recently playing through Zelda 1, both in the process of ripping this and casually, and I've never once seen more than one Patra in a room. In fact, given how the NES works with regards to sprite limitations, I find it rather unlikely that the developers would have ever considered doing such. I mean, the game is prone to lagging when you're only fighting one Patra, so imagine how laggy it would be if there were two. And yes, Dodongos have appeared in other dungeons whilst not being the main boss guarding the Triforce Shard, but so has literally every other boss monster in the game sans Ganon.

@MisterMike
I seem to recall two sets in one room in at least one part of Death Mountain.
Additionally, the game's manual does not make any distinction between enemies and bosses, just overworld and underworld enemies. Dodongos in later dungeons are undeniably treated as generic enemies, for example. "Boss" for this game really is just "enemy at end of dungeon."

@Doc von Schmeltwick
- It only appears by itself, as most bosses do.
- It makes roaring noises while you're fighting it, like most bosses do.
- It's significantly hardier than most common enemies, as most bosses are.
Yeah, Patra's a boss.

Patra really should be on the enemies sheet, as it's really not a boss, except maybe in 2nd Quest or something....anyways, glad this has cleared up which palettes are overwritten.

The white spots on Ganon should be light cyan

All that work going through the final dungeon....just to find a giant blue pig punching himself in the face.