The SPNKR rocket launcher.
Sure, other games have rocket launchers, but those rocket launchers aren't named SPNKR. ;)
Plus, it's about to make an appearance in it's 6th game! Now that's experience.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.