Need help finding old game.

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In the early 2000s i watched my stepdad (who i don't have a contact to anymore) play a game on the PC. Back then i was about 5 y/o and have some small memories about the game. No idea how that game popped up in my mind but ever since I'm desperate to find that game. Haven't got any luck so far and this is probably the last option. So these are the memories.

>Female lead character (probably brunette, ponytail perhaps, maybe a latex suit)
>Third person shooter/melee combat
>At the beginning you got to shoot at circular shooting targets with double pistols.
>Weird creatures (Green humanoid like creature with long arms? Not sure.)
>Endboss battle is on a rocky land which is floating in space (?)
>Endboss is a big (2-3 times the lead character size) Minotaur like creature (?)
that is wielding a huge sword, which you can pick up after defeating him.

I know this ain't much but this is all i got. Can't remember of anything else.