Alphablending Ganis?

[projectigi]

Hi,

is there any way to alpha blend ganis?
i tried it like

NPC Code:

---

function onCreated(){

  with(findimg(1)){

    ani="walk","";

    alpha=0.5;

  }

}

---

but it didnt work, and i dont want to use COLOREFFECT thing(which i'm not sure if it works at v4) on all these sprites =/