How is Highlander II: The Quickening not represented on this page? The villain's henchmen explode for no reason, the Shield is taken down by an explosion (because apparently just turning it off would be too complicated), and hell, the immortals tend to cause explosions whenever they receive "the Prize."

I need to add Poke646 here... Too lazy...

The LFO's in Eureka Seven seem to be Made of Explodium. After getting shot at, or sliced with a melee weapon, the LFO explodes into a pink fireball.