No Game No Life Zero~Hardcore Gacha

Riku was planning for the expedition with Ivan and Aley. suddenly the memories of an 20 years old anime otaku comes in his mind. it was such that he was neither riku nor that person, he was both at the same time. It was not all, he got a gacha system by which he can win powers of different animes as rewards by completing missions. Easy right? hell no, the missions were so difficult and dangerous that the gacha system can't be considered a cheat code. but for riku, who was living his whole life playing with death, it was of course a cheat code. how will he complete the missions? what strategies will he use? will he be able to make a better ending this time without dying?