Tiger Girl usually spawns inside the Bandit Stronghold in Jangan. Supposedly she has 12 random spawning points but your best bet is to stick within in the Stronghold. A good way you can time her spawn is to see when the other unique bosses appear.
Tiger Girl is a level 20 unique boss riding on a giant white tiger and she’s as powerful as a strong white tiger. Tiger Girl has to ability to invoke a zombie status on your character meaning that if you try healing yourself with pots, the exact opposite will happen and you will be reducing health instead of gaining it with the pot. Tiger Girl literally spawns 5-10 giant white/black/normal tigers about every 10-15 seconds. She then spawns about 10-20 white/black/normal tigers about every 10 seconds. This can get very hectic for you as these tigers spawn right around her in about a 5-6 meter radius so it’s very hard to target her with all of those tigers running around. After Tiger Girl is killed, her tigers are still going to be running around so dont let your guard down.
The following are some requirements you should have before trying to fight Tiger Girl.
Your character should at least be level 24 (I’ll suggest level 30+ if you don’t want to have a hard time). As long as white/black tigers don’t more then 1-2 damage to you then you alright. An ideal character built to fight Tiger Girl would be a STR build because they have very high defense and strong attacks, which is good because you’re going to have to endure like 50 tigers at once.
You should have at least 3 friends or more who are at your level (assuming your level 24) or higher to join you so you don’t get targeted by all of her tigers. Usually there are going to be like 10-20 people (usually high level) who are usually camping inside the stronghold for Tiger Girl (if you don’t have 3 friends your level or higher) so you could probably tag along with them and you should be alright.
Bring lots and lots of pots and abnormal cures because it’s going to be a long fight and you don’t want to die and have your body being over runned by all of those tigers
4) You should have your character with beserk mode ready so you can hit Tiger Girl hard, strong, and fast before she starts spawning too many tigers.
The strategies that can help when fighting Tiger Girl are given below.
As earlier told you should have at least 3 friends or more who can help you out and get your back for Tiger Girl. Before fighting her though, you should make a party with Exp Share so you can all have a fare share of the experience at her. Remember, everyone is focusing on killing Tiger Girl, not her tigers, so Exp Distribution is kind of pointless.
You should have 1 or 2 guys stay on the background to resurrect/heal your friends so they can help back out again. You should have these guys behind a healing circle if they aren’t that strong.
Your party should also have about 2 archers and 3 spears/glavie/sword/blades in order to kill Tiger Girl efficiently. Archers should use the Autumn Wind skill because it allows them to hit Tiger Girl (with damage close to an anti-devil missile) while doing splash damage to the tigers around her so they can clear things up a bit. The other 3 hard hitting spears/sword/etc should stay in the front and hit Tiger Girl directly.
As for Tiger Girl’s drops, I’ve heard various things from people such as her dropping SOS items, unrepeatable items or elixirs. I’ve also heard that she drops nothing at all except money and some normal items. But her drops are free for anyone I think (because she a unique boss) so you better pick up fast.