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9110
Size: 2468x1493 | Tagged: safe, artist:badluckbootsy, martlet (undertale yellow), bird, fictional species, anthro, undertale yellow, undertale, attacking, bird feet, black feathers, blue hair, boss battle, boss fight, boss monster, claws, delta rune, feathers, female, flying, galaxy, hair, intense, larger female, long hair, martlet (zenith form), simple background, size difference, solo, solo female, spread wings, stars, talons, undertale (series), winged arms, wings, yellow eyes, yellow heart
8100
Size: 2470x1492 | Tagged: safe, artist:badluckbootsy, martlet (undertale yellow), bird, fictional species, anthro, undertale yellow, undertale, attacking, bird feet, black feathers, blue hair, boss battle, boss fight, boss monster, claws, delta rune, feathers, female, flying, galaxy, hair, intense, larger female, long hair, martlet (zenith form), size difference, solo, solo female, spread wings, stars, talons, undertale (series), winged arms, wings, yellow eyes, yellow heart