Mobile Sky Island: I Can Critically Ascend Everything

[Mobile Sky Island + Survival + Critical Hit Upgrade + Mindless Fun] The all-people Sky Island game has arrived! Earth has fallen, the climate is extreme, and islands have ascended. Everyone is professionalized and data-driven, with only one hope left for survival! I, who have just transmigrated, have been chosen as the island lord of a Sky Island and have been given a cheat-like ability: Critical Hit Upgrade! It can be used on people and objects, and is refreshed every day at 1 AM. [Target: Explosive Bomb] [Quality: Bronze] [Upgrade Critical Hit Multiplier: 8x!] [Critical Hit Success!] [[Quality Upgraded to: Gold!] [Upgrade Description: After the projectile explodes, it can produce fragments and shockwaves covering an area with a diameter of 400 meters.]