I Just Released a Hot Air Balloon, and the Whole Eagle Sauce Panicked

Qin Ping travels through the parallel world and gets an upgrade system for everything at the beginning! As long as you gain experience points, any item can be infinitely upgraded? Weather balloon upgrade routes: weather balloon → stratospheric airship → spaceship Item name: Space airship Level: MAX Experience points: 500 experience gained per hour Features: Plasma engine maximum speed Mach 6 Magnetic energy absorption photovoltaic panel permanent endurance Magnetic energy body stand effectively resists the earth's gravity When the spaceship was hovering 100 kilometers above Yingjiang, the entire Yingjiang was panicked because they couldn't defeat it at all! Commander Yingjiang: This is not a weather balloon! We severely condemn this kind of invasion by the Dragon Kingdom Long Guo: We declare that this is indeed an agricultural weather balloon, but it is just a bit bigger. By the time Qin Ping drove his spaceship to the moon to test whether potatoes could be grown, the whole world was numb. Long Guo: So what, growing potatoes is just a common agricultural practice, please don't be nervous. Eagle Sauce: I believe you! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.