I found this interesting, so maybe someone else will too.
Note: Some of these references are spoilers for both Saints Row IV and the media it is referencing. �I have put the name of the referenced media first, to help try to avoid unwanted spoilers. -From
Mass Effect- Your presidential advisor Keith David is
voiced by Keith David, who was also the voice of Colonel David Anderson in Mass Effect. �I guess that�s not so much a reference as a fun fact, but I digress. �The setup of the ship in SRIV is very similar to the Normandy. Also, �each ally in both games has a �loyalty mission� that can be completed to power them up. �Finally,
the scene at the end of Mass Effect 2 where Shepard leaps to the ship is very reminiscent of
the leap of the Protagonist in SRIV when he escapes. -From
Star Fox 64 - an ally recommends you �Do a Barrel Roll�
-From Harry Potter - The unnamed protagonist asks if catching a glowing yellow ball gives him points.
-From multiple stories of Edgar Allen Poe - A text adventure game has a section meant to depict
"terror as personified by [Earth's] literary culture" containing a raven, a pendulum, a heart in the floor, and a walled off skeleton.�
-From
Metal Gear Solid - There is a stealth mission where the protagonist wears an outfit very similar to Solid Snake. �Also, during the mission
cardboard boxes are used to hide from guards. Finally, during the mission one guard says �This snake is 100% solid!�, except in this instance he is referring to his junk.
-From
Dragon Ball Z � When Genki goes Super-Genki, he starts glowing yellow in a Super Saiyan-esque matter. �
There is also a Super Saiyan hair option. -From
Mortal Kombat � Once ally Pierce�s super powers are unlocked, he is
outfitted with gear that looks similar to
Kung Lao's.
-From
The Matrix � Once ally Ben King gets his super powers, he is outfitted in Morpheus� outfit from The Matrix.�
Gamefront made a video of another 50 references to pop-culture found in Saints Row IV