In Paper Mario: The Thousand-Year Door, Luigi's theme has a remix of the fanfare that plays when you beat a world in Super Mario Bros 3.
(skip to 0:58)
Also In Paper Mario: The Thousand-Year Door, Lord Crump's Theme has the Atari 2600 sound effect of Pac-man dying.
(Skip to 0:45)
In Sonic 3, when playing it alone, at the end of Launch Base Act 2, you fight Big Arms. With Sonic and Knuckles attached, you skip the Big Arms fight and go directly to Mushroom Hill Zone (But as Knuckles you still fight Big Arms.)
In Epic Mickey, when Beluga Billy gives you a stop watch, he says " It's dangerous to go alone. Take this!" a reference to the original Legend of Zelda.
In Generation 1 of Pokemon, all areas are named after colors, even though being released before the Gameboy Color. When playing Red & Blue on a Super Gameboy, or Yellow on a GBC, the areas change into the colors they're named after. However, this only happens with Yellow when using Pokemon Stadium 1 and 2's GB Towers.
In Sonic Adventure 2, Knuckles can go faster than Sonic.
In Super Mario Sunshine, in Bianco Hills, if you load the first mission, the bridge to Petey Piranha is broken, but if you use the water spiders to bounce across broken gap, you can get to the windmill. If you get to the top, and talk to the man dancing, he'l say, "Hey aren't you getting ahead of yourself? shouldn't you be doing something else first?" referencing the fact that you skipped the entire first mission and went straight to the second.
(This post was last modified: 09-05-2012 10:07 AM by Takahashi2212.)