unfinished doom clone

Game is interesting, but frustrating to play due to clear presence of bugs. First it plays smooth, then it starts stuttering in a min or so and eventually crashes, like it has a memory leak or something. Have to save all the time and restart the app. Frustrating considering that my home button is not very good. Controls are great, just like doom classic. Graphics is not as good as doom classic, but OK. With stuttering/crashing fixed this app can be worth $2 or $3, even though it violates the spirit of "FreeDoom" by having a price tag on the first place.
Btw, whats the deal with a "Freedoom: graphics not finished." on a spiderdemon?

Koopa_Troopa about Hell on Earth (3D FPS)