You know?, this game illustrates perfectly the way in that a complex life-cycle parasite actually lives. Idon´t know if you used that as inspiration. Firs they enter in a small animal, they develop inside it, then this small animal is eaten by a bigger animal and the parasite develops inside again until they reach sexual maturity and reproduces inside the last animal. Ho and they often camouflage like the host (the animal in that they get inside) food or even make the host more easy to be eaten by the bigger animal. Well I guess to much biology for a day.