The Key has shown an extraordinary capacity for creating androids and various kinds of machines. Aside from building his own Key-Man servant (which has some resistance to physical attacks and limited offensive capabilities), he was able to control the highly advanced Amazo android as well. The Key built weapons and other devices capable of harnessing stellar radiation for their power, altering the Moon's orbit, harnessing dream-energy, and regenerating his own body using radiation. On one occasion, the Key developed a "vibrational prison" which was capable of immobilizing a wide range of heroes (including Superman). More recently, the Key altered his key-blaster so that instead of firing energy bolts, it fires psycho-chemicals which can disable practically any living organism.