What species was your first "Last One" kill?

[Noctis Caelum]

For me it was those effing Dryads. I really have no idea how. I just know that when I saw them, it aggravated me to no end because they're annoying little pests. But I wasn't actively grinding them to get it done. It was a total surprise when I saw that their species was rare in Libra, and then the VERY next encounter, the bastard was pink/purple. Definitely a satisfying achievement to get, and not against a pushover enemy either. Makes it even more satisfying.

[Sephiroth]

In the Japanese and German version it was a Gremlin, then a Gabble/Niblet.

[Loony BoB]

Pretty sure mine were those little floaty buggers often found in the Dead Dunes, sometimes alongside a Schrodinger's Cat. I think my second one was the armadillo-esque thing because I farmed them for EP. Seriously, easiest EP in the game, those buggers. I was gutted when I found I'd overdone it.

[radicaledward124]

Ed's was the Gremlin! I'm uber happy not to be running into those buggers, but like right after that I got the Nibblet Last one.

[Scotty_ffgamer]

It was the Gremlin. Just ran into it today. I've been trying to eradicate the Niblets, but they just won't die.

[DMKA]

For me it was Valis/Hanumans. The last one I actually fought was a Hanuman, but apparently they share a count.

It was quite difficult I must say, and it killed me at a very inopportune time when I hadn't saved in a few hours.

[Psychotic]

Cactair :(

EDIT: Just got my achievement for putting Niblets out of existence though.

[Scotty_ffgamer]

Scratch that, Cactair was my first Last One. I forgot that it had the Last One message pop up.

[Sephiroth]

Scratch that, Cactair was my first Last One. I forgot that it had the Last One message pop up.

It does not count for the trophies so it is not really treated as one.

[metagloria]

Miniflan! Followed by Gremlin and Niblet.

[Eagle299]

Dryads. Mainly because they kept summoning reinforcements. Fought them while going through the forest to reach the Moogle village, and then the pink one appeared.

[Masamunemaster]

Dryads, summons help+ firaga= bye bye.

[BlackFire]

For me it was the Gremlins followed by the Niblets.
I keep a running tally of every monster I kill. I know how many of each I need to kill in order to get to the last one. The only one that is impossible to make go extinct before day 13/14 is the Meonekton. But I kill everything I run across. Usually by day 9-10 almost everything is extinct.

[Shiva95]

For me, it was the Dryads.

[Mr. Carnelian]

Niblets. I find that the Death Safari really helps to thin the herd.

[Formalhaut]

Dryads, and I didn't even hunt them down specifically. They just get spawning in those annoying woods, and I'm not the sort of person to flee from a trivial encounter! So I just kept killing them all.

It actually gave me a jump when I saw the Last One though. It was night in the woods, and just in the distance I saw this aggressively pink creature coming towards me and I was like "what was that!?".