Grandma's Boy Easter Egg - Many eggs for the movie!

1) At one point, Jeff refers to Alex as "Douche Bigalow", a pun on the character Deuce Bigalow. Rob Schneider, who played Bigalow in Deuce Bigalow: Male Gigolo and Deuce Bigalow: European Gigolo, makes a cameo in the movie. All three films were produced by Adam Sandler's "Happy Madison" production company.

2) At one point, Samantha refers to Alex as "Nana's Boy," which was the film's original title.

3) Gay Robot's appearance bear similarities with a Gundam. This does not fit in with the film's prevailing American tastes, especially with regards toward the Xbox, a console that concentrates on American-made video games. However, some of the games mentioned above are highly-concentrated in Japan culture/area compared to America (Dance Dance Revolution, Metal Gear Solid, Lineage 2, Guilty Gear X2), so this is not that surprising.

4) At certain points in the movie, you can see a poster for a game called "Fadrian's Quest". The poster bears a striking resemblance to the box for the game "Leisure Suit Larry: Magna Cum Laude"