Adamantium (2000)

Adamantium is a metallic compound developed for Weapon X after using an unknown element found in a meteorite somewhere in Nigeria by William Stryker and Team X. Stryker and the Weapon X team then proceeded to inject the adamantium into the skeleton and bone-claws of Logan. When he is later shot in the head with bullets made of the compound, he sustains severe intra-cranial trauma that induces extensive amnesia. Deadpool later gets one katana protruding out of in-between his two middle knuckles of each of his hands. Even later Stryker also gives similar claws to Yuriko Oyama extruding from the tips of her fingers.