Buzz Lightyear is a space ranger overweight having an enemy called Zurg who is actually his father but was defeated by a ferocious dinosaur called Rex and Pixar introduces him to purchase this toy again as commercially appealing for geeks, build in 1995.
In the second film he has a large stake, rather than being replaced by a real space ranger toy disguised and falling in love with the female version of her best friend, perhaps the most romantic thing and some weirdo to seal a friendship.
Buzz Lightyear died at the hands (more like axe/cleaver thing) of Insane Woody. After the dead of Insane Woody, Buzz beat the hell out of him in Hell. He soon flew to New York, did 9/11, and died in the World Trade Center.