Pulsing

Power (力) is a material type available in Kingdom Hearts and Kingdom Hearts II. Power materials contain the essence of strength, and are colored blue.

Kingdom Hearts

 * Power Shard: Bouncywild (12%/24%), Powerwild (8%/16%) , White Mushroom (100%) , Bambi (40%/60%)
 * Power Gem: Air Pirate (4%), Battleship (8%/16%), Pirate (4%), White Mushroom (10%/40%) , Bambi (30%)

Kingdom Hearts Final Mix introduced the Power Stone, dropped only by the Sniperwild.

Kingdom Hearts II

 * Power Shard : Creeper Plant (8%), Large Body (12%)
 * Power Stone : Luna Bandit (8%), Silver Rock (6%)
 * Power Gem : Aerial Knocker (8%), Shaman (10%)
 * Power Crystal: Morning Star (12%)

In Kingdom Hearts II Final Mix, a Power Crystal can be found in a chest at the Cavern of Remembrance: Depths.

Kingdom Hearts
Power materials are used to synthesize the following items:
 * Energy Bangle (2 Power Shard)
 * Power Chain (2 Power Shard)
 * Angel Bangle (3 Power Shard)
 * Golem Chain (3 Power Shard, 1 Power Gem)
 * Gaia Bangle (5 Power Shard, 3 Power Gem)
 * Heartguard (3 Power Shard)
 * Power Up (5 Power Shard, 3 Power Gem)
 * Ultima Weapon (5 Power Gem)

Kingdom Hearts Final Mix
Power materials are used to synthesize the following items:
 * Mega-Potion (1 Power Shard)
 * Power Chain (2 Power Shard)
 * EXP Earring (1 Power Stone)
 * Titan Chain (5 Power Shard, 3 Power Gem, 1 Power Stone)
 * Three Stars (5 Power Gem)
 * Power Boost (5 Power Shard, 3 Power Gem)
 * Fantasista (3 Power Stone)

Kingdom Hearts II
Power materials are used to synthesize the following items:
 * Elixir (1 Power Stone)
 * Megalixir (1 Power Stone)
 * Mega-Potion (1 Power Shard)
 * Mega-Ether (1 Power Shard)
 * AP Boost (3 Power Crystal)
 * Magic Boost (3 Power Crystal)
 * Power Band (1 Power Stone)
 * Buster Band (1 Power Stone)
 * Garnet Ring (1 Power Stone, 1 Power Shard)
 * Diamond Ring (1 Power Stone, 1 Power Shard)
 * Mythril Ring (1 Power Stone)
 * Orichalcum Ring (1 Power Stone)
 * Mage Earring (1 Power Gem)
 * Slayer Earring (1 Power Gem)

Trivia
The "Energy Crystal" in the first Kingdom Hearts was mistranslated in the English release as a "Power Crystal".