Sonic is naturally fast, born with incredible speed. Flash gained Speed Force powers after being struck by lightning. Flash reached 13 trillion times speed of light at one point
Batman ranks 93rd, Superman 65rd, and Wonder Woman 71st. Batman's Nightwing form matches his combat skills. Aquaman's trident can cut through Superman's skin. Deathstroke ranks 92nd, possibly more skilled than Batman
Sonic was naturally fast from birth, requiring special shoes for speed. Flash gained powers from cosmic energy source after lightning strike. Flash's powers are stronger without Sonic's special shoes
Flash is Adobe's multimedia content plugin for web browsers. Flash Player is being replaced by HTML5 but still needed for some websites. Adobe has stopped supporting Flash and blocked web content
Homestuck is a long webcomic written in Flash. Mobile devices don't support Flash, making it inaccessible. Requires computer with Flash support and Wi-Fi
SWF files were Flash animations and games embedded in websites. Adobe ended Flash Player support in December 2020. No browsers support SWF files anymore