Jet Hammer is King Dedede's Down Special Move in Super Smash Bros. Global Apocalypse. Dedede pulls out his hammer and holds it. The move can be charged by holding down the attack button. Dedede can also walk while charging it. Fully charged, the hammer does massive damage and knockback. If it is charged up too much, it will cause one percent of damage to King Dedede every second until you activate the attack.
SNES - Kirby Super Star (1996)