Amy

Amy Rose (or simply Amy) is a pink female anthropomorphic hedgehog from the  franchise who has a huge crush on Sonic the Hedgehog. She also participates in the Olympic events in the Mario & Sonic Olympic Games installments as a playable character. She was voiced by Lisa Ortiz in the first two installments, and is currently voiced by Cindy Robinson.

Mario & Sonic at the Olympic Games
In Mario & Sonic at the Olympic Games, Amy Rose appears as an All-Around character, featuring good skill and stamina stats, average speed, and below average power.

Amy Rose utilizes some sort of heart power similar to Peach for her special moves. In the Wii version for Amy Rose's Dream Table Tennis special move, she laughs and hits the ball over the table covered with hearts with a "Go!". It hovers in above the table for a second, then plummets down. This move is quite easy to return, but if it isn't it will probably knock the opponent over. In Amy Rose's fencing special move, she lunges forward, propelled by her heart power in one powerful jab.

Mario & Sonic at the Olympic Winter Games
In Mario & Sonic at the Olympic Winter Games, Amy Rose appears again as an All-Around character. Her special move has her spinning around with a bunch of hearts saying "OK". In the Adventure Mode of the DS version, Amy Rose is found in Sparkleton where she will join the player's team if the player beats her in Ski Shooting (Dream Biathlon). In Frostown, there is a mechanism that requires Amy Rose to hit it with her Piko-Piko Hammer.

Mario & Sonic at the London 2012 Olympic Games
Amy Rose returns in Mario & Sonic at the London 2012 Olympic Games as once again an All-Around type. Like the other female athletes, she has a new outfit which is worn at Gymnastic and Aquatic events, as well as maintaining her winter outfit for Equestrian. This is the first Mario & Sonic game to feature Amy being voiced by Cindy Robinson, who replaces Lisa Ortiz, who voiced Amy in the other Mario & Sonic games.

Mario & Sonic at the Sochi 2014 Olympic Winter Games
Amy returns in Mario & Sonic at the Sochi 2014 Olympic Winter Games, retaining her role as a playable All-Around type character. In Legends Showdown, she’s in Area 2 with Knuckles, Wario and Waluigi. And she has victory animations with Sonic, Blaze and Peach.

Mario & Sonic at the Rio 2016 Olympic Games
Amy Rose returns as a playable character in Mario & Sonic at the Rio 2016 Olympic Games as once again a all-round type. In the Nintendo 3DS version she's exclusive to 100m Freestyle and Rhythmic Gymnastics.

Mario & Sonic at the Olympic Games Tokyo 2020
Amy reappears as a playable character in Mario & Sonic at the Olympic Games Tokyo 2020. Like the other Mario and Sonic characters, she wears appropriate clothing for the events.

Super Smash Bros. Ultimate
Amy appears as a spirit in Super Smash Bros. Ultimate.

Profile
''Sonic's wanna-be girlfriend presents an All-Around set of skills that allow her to achieve success in many different events. She's not the most powerful athlete out there, but she can still surprise most of the competition in a variety of ways.''

Profile
''Amy Rose is both graceful and powerful, and is a valuable member of Sonic's crew. While she tends to find herself following Sonic, Amy has come to the Olympic Winter Games to be a serious competitor. With the Pink Typhoon ability on the Wii and DS, and the Rose Spin ability on DS, Amy hopes to win over Sonic by bringing home the gold!''

Stats
The Wii-stats are on the left, the DS-stats are on the right.