Gaining Extra Lives
Unlimited extra lives can be found in the level "Star World 1." Make sure Mario or Luigi is a wearing a cape, then head past the yellow blocks on the left side of the screen. Grab the first turtle that comes on the screen. Throw the turtle shell in the air and when it comes back down, hit it with the cape.
Make Mario Fly
When Mario gets the cape power up, he will gain the ability to fly. To achieve lift-off, press the "B" button on the controller as Mario is running. At the end of the run, press the "A" button to jump and Mario will start to fly. Hold down the "A" button again and Mario will glide to safety.
Dragon Coins
Search every level in the game and five dragon coins can be found. When the five coins are collected, Mario or Luigi will gain an extra life.
Different Colored Yoshis
If Yoshi is red, he will be able to spit fire when he eats a turtle shell. Green Yoshi will only be able to have special powers if he swallows an enemy that does not have a shell. When Yoshi is blue, he will gain the ability to fly.
Exits on Each Level
Each level of Super Mario Advance 2 will have two exits. The first exit is the regular gate at the end of each Mario game. The second exit can only be opened if players are able to find a large hidden key.