An Alien/Floating variant of Sunfish Jones. It is more glass cannon-oriented, despite toting much less health and damage than Sunfish Jones, it almost always appears with extreme magnifications. It also sports powerful 12,000 HP barrier, meaning it can survive longer against your cats. It also moves twice as fast.
You can use strategies similar to what you would use against Sunfish Jones to defeat this enemy.
You can use Mekako Saionji or her True Form to defeat this enemy. She is resistant to Aliens and can tank Spacefish Jones' attacks in her first form, and can do massive damage to Aliens and take down this enemy in her True Form.
You can also use Awakened Bahamut to rush this enemy, but if you don't time him properly, A. Bahamut can die from Spacefish Jones' attack.
Jameria Cat and Macho Legs are useful against him as they are strong against aliens. Jameria can interrupt Jones attack
Slowing it will do nothing; its range makes no difference as it will still destroy all your cats, this makes Corrupted Psychocat useless. Ramen Cat also can't take many hits because he doesn't resist Aliens.
After his Barrier is broken, a good unit would be Sadako Cat due to the Resist Floating and Weaken Floating abilities, because Spacefish Jones is Floating, unlike his Angelic counterpart.