and dislikes tears. He took the young Tails under his wing like a little brother, and is uninterested in marital proposals from Amy Rose. In times of crisis, he focuses intensely on the challenge as if his personality had undergone an astonishing change. Sonic's greatest strength is his running speed, being known in the game's universe as the world's fastest hedgehog. Many of his abilities are variations on the tendency for hedgehogs to roll into tight balls for protection with the addition of spinning his body. Since his introduction in 1991's Sonic the Hedgehog, Sonic's primary offensive maneuver is the basic "Spin Attack" (or "Sonic Spin Attack"). Later games in the series expanded on this basic attack and two of these enhancements have become mainstays of his: the Spin Dash which was introduced in Sonic the Hedgehog 2 and involves Sonic spinning on the spot before blasting off at full speed, and the Homing Attack, officially introduced in Sonic Adventure, in which Sonic dashes toward a target in midair. Sonic's only weakness is that he cannot swim, sinking like a rock if plunged to a deep body of water. The reason for this is because Yuji Naka had a misunderstanding about hedgehogs not being able to swim. The only exception is that he can swim in the Sonic the Hedgehog Adventure Gamebooks. When the seven Chaos Emeralds are collected and used, Sonic transforms into , a faster, stronger and invulnerable version of himself that can fly. In Super Sonic form, Sonic's irises turn red and his body becomes golden. Reception and legacy As Sega's mascot and one of the key reasons for the company's success during the 16-bit era of video game consoles, Sonic is one of the most famous video game characters in the world. In 1993, Sonic became the first video game character to have a balloon in Macy's Thanksgiving Day Parade. In 1996, Sonic was also the first video game character to be seen in a Rose Parade. Sonic was one of the three game characters inducted on the inaugural Walk of Game class in 2005, along with former rivals Mario and Link (both from Nintendo). One of a class of genes involved in fruit fly embryonic development, called hedgehog genes, has been named "sonic hedgehog" after him. On the other hand, Sonic's apparent romantic relationship with Princess Elise in the 2006 video game resulted in major