The Hyper Amy Sisters 5 Action Show!/References

Nintendo, Sega, and other video game companies
There's a gag where Amy can be seen playing on a NES or any other console.

List for the games in the gag:

NES

 * Super Mario Bros
 * Somari
 * Super Mario Bros. 3
 * Mario hacks
 * Dr. Mario
 * Yoshi's Cookie
 * Fictional homebrews
 * Mario Bros. (1983)

SNES

 * Super Mario World
 * Yoshi's Island
 * Super Mario Kart (Japanese version)
 * Donkey Kong Country

Genesis

 * Sonic the Hedgehog 1 - 3
 * Sonic Spinball
 * Sonic hacks
 * Alex Kidd ports