The Weakest Summoning System? I Merge Infinitely

Alien beasts are raging, and the whole people are awakening! Here, some people awakened the S-level elemental system, and the stars held the moon; some people awakened the life system, and everyone disappeared. On the day of awakening, Su Zhe, a top student with a perfect score, picked the most useless summoning type, the initial battle pet: a limp void jellyfish. The whole school laughed: "Bring a jelly to the front line and plan to kill the alien beast?" However, Su Zhe activated the [God-Level Entry Synthesizer] with a backhand! As long as you touch the corpse, you can extract all entries! Qualifications too poor? I modify the underlying code directly! Then, extract, fuse, and fuse again! "One touch of corpse, one mutation, all the way to legend!" [Absolute Stealth] + [Void Annihilation], the little jellyfish transforms into the abyss star spirit that devours the dimension! [Immortal Skeleton] + [Hell Dragon Breath], the broken skeleton is fused into a world-destroying bone dragon that rubs the forbidden curse with its hands! [Mechanical Ascension] + [Absolute Firepower], scrapped iron sheets are reconstructed into a high-dimensional mecha that can crush the gods! While other geniuses were still spending all their money to buy high-end rations for their pet beasts, Su Zhe's army of mythical monsters had already bankrupted the other world. A certain S-level genius: "Su Zhe, I finally contracted a behemoth with third-level rare potential today!" Su Zhe: "Very good, then can it withstand a black hole from my jellyfish or a Star Destroyer Cannon from a mecha?" Genius: "?"