The Legend of Zelda: A Link to the Past-Mario's face can be seen as framed photos in many houses.
The Legend of Zelda: Link's Awakening-There are many Mario-related enemies in the game, along with a Yoshi Doll as an item.
The Legend of Zelda: Ocarina of Time- There are framed pictures of Mario,Luigi,Peach and Bowser in the Hyrule Castle.
-Also in Lon-Lon Ranch, all the people have Bowser medals on their necks.
The Legend of Zelda: Majora's Mask-One of the masks that the Masks Salesman has is a face of Mario.
The Legend of Zelda: Twilight Princess- Fyer, the man who operates the cannon, has a Bullet Bill on his arm.
Animal Crossing-There is a Mario and Lugi statue
-There is also code only Super Mario Bros. related furniture
-The game also has the Classic Super Mario Bros.games for the Nintendo Entertainment System
-There is also two shirts with Mario and Luigi logos on them.
Animal Crossing Wild World-Super Mario Bros furniture can be received by Nintendo Wi-Fi Connection letters to Nintendo
-Additionally, Super Mario Bros. 3 paper is in the game
Animal Crossing: City Flolk-Furniture from Mario can sometimes be found in floating presents
-Also Mario and Luigi costumes can be bought at Mable and Able's store
Kirby Super Star when fighting in a ring,you will see Mario,Luigi,Birdo and Toad cheering you on
Kirby Super Star Ultra-Mario,Luigi,Peach,Wario and Two Toads are in the audience
Pikmin 2-One of the items is a bottle cap with Bowser
-One of the says Mario Paint on it
-One of the items is Princess Peach's crown
Brain Age-If you touch the man that is at walking speed,he will whistle the Mario theme
Call of Duty: Modern Warfare 2-Price a charcter form the series is in the form of a Super Mario Bros. sprite
Picross DS-After completing all the normal mode puzzles, ten Mario themed puzzles can be unlocked
Sonic the Hedgehog-In Marble Zone, a pattern on a temple in the background resembles Mario's face
Mike Tyson's Punch out-Mario is the referee
Tennis NES-mario was the referee