The fourth from corriezodori's Iron Artist.

Gon is a very odd Japanese video game for the Super Nintendo - most players only know of the little dinosaur from his appearance in Tekken 3. There are several vore scenes in the game - none of them is fatal, and each of them only does a set amount of damage no matter how long you stay inside whatever being has nommed on Gon. Two of them stuck out to me: a giant snake that's an end-boss of one of the levels, and an orca (which will be the next submission.)

In the game, if the snake is able to get his head around you, he just holds you in the very top of his throat until you squirm free. This is how that encounter really would have went, in my opinion!