Lost In The Pyramid seems to have a bit of an identity crisis. The artwork is apparently taken entirely from clipart sources and veers all over the place, from pencil cartoons to high res photos to oil paintings. The puzzles also feel a bit random, and frequently make no sense at all.
Sound doesn't really exist at all, except when you score a point or lose a life.
Overall, Lost In The Pyramid feels like a pre-Alpha version of a game. It shouldn't really have been released in this state.
If you want a good adventure game on your phone, try Lament Island, Return To Mysterious Island, Atlantis Redux or The Final Battle.