Ratchet & Clank Wiki
|The Ratchet and Clank series is a long-lasting series of video games (including other media, such as comics and an upcoming movie) on the PlayStation 2 and PlayStation 3. Ratchet, an adventurous Lombax on his home planet of Veldin, met Clank, a "deformed" robot created in a robot factory in the Solana Galaxy. Over time, the pair met up with Captain Qwark, an idol of Ratchet's, and fought against the evils of Dr. Nefarious, Percival Tachyon, and the Nethers. The story progresses from Ratchet and Clank on the PlayStation 2 until the newly released Into the Nexus on the PlayStation 3. Ratchet and Clank have also appeared in other games, such as a full spinoff appearance with Jak and Daxter and Sly Cooper in Playstation Move Heroes, as well as small cameos in different Sony series.|
The Fusion Grenade made its first appearance in Ratchet and Clank Future: Tools of Destruction on the PlayStation 3. The in-game quote says that "Nothing ruins an enemy's day like a thermonuclear hand grenade!". It is a default weapon, alongside the Combuster, and is available as soon as Ratchet starts his adventure on Planet Kerwan.