this game adds several new things. one such thing is the addition of yoshi. yoshi has been kidnapped. when mario releases him, he can then ride on yoshi. yoshi also has several other colored friends – blue, red, and yellow – which mario must also free. while on yoshi, mario can make yoshi swallow things. if yoshi holds a blue shell, he gains wings and mario can fly for a short time before yoshi swallows it.