In this story I thought either it will be an isekai story where our mc somehow becomes Ratchet like through wishes or something and he becomes Ratchet with access to all the weapons and armor from every game either right from the start or through a system of sorts and either by system or somehow spaceship with the Lombax tech shown in "Rift Apart" is able to travel the multiverse and go on adventures or you could just set him and clank in one world like RWBY, danmachi, or any other anime or game series. Another idea is Ratchet and Clank from the games although there are 2 different Ratchets to choose either from the earlier games or the 2 newer games that restarts the series, so for one you have at least 4 games to choose weapons from as well as armor the other as I said just the 2 games.