Classic Game Endings Online
Game Revolutions has a project running to collect together some of the finest game endings from the 16- and 8-bit eras. Some of the examples they have for viewing via Flash include Legend of Zelda: Link to the Past, Flashback, Secret of Mana, and Starfox.
Here is the correct link for Starfox.
Personally, I wish that they didn't restrict themselves to consoles. There were a lot of Commodore, Amiga, and early PC games that had great endings.
The Overrated mod is for reversing inappropriate, positive mods, not for voicing disagreement with a post.
Not flash, but http://www.vgmuseum.com/ has been around a LONG time and has an extensive archive of endings.
On the Gameboy version, winning Game B, level 9, 5 high results in a ending sequence. First, a bunch of dancers and musicians perform for you, then you watch a shuttle launch.
In Game A, attaining certain high scores is rewarded with smaller spacecraft launches, started with a puny probe and going up in size to some moderately impressing rockets.