How Sean joined the Tourney
Sean Matsuda was born in Brazil, but his paternal grandfather was Japanese, making Sean ½ Japanese, ½ Brazilian. Sean is a keen basketball player, and his main pastime is martial arts. At the U. S. Martial Arts Tournament, Sean saw veteran World Warrior Ken Masters in action and decided to seek him out for training.
Sean approached Ken on numerous occasions and asked to be trained by him, but Ken declined. Sean then entered the third World Warrior tournament is to prove that he is a worthy student, but was again unsuccessful and was defeated by Ken himself. Ken found Sean to be a nuisance, and instructed him to search for Ryu and not return until he has found and defeated him. Sean eventually found Ryu and challenged him, but was easily defeated and was badly injured. After recovering from his injuries, he spends an entire year training by himself.
Later, Sean entered the U.S Martial Arts tournament to prove to Ken that he has become stronger. However, Sean lost during the qualifying rounds in front of Ken. Ken told him he lacks the discipline and experience necessary to become a true street fighter. Ken finally showed him a few moves, alongside his son, Mel. Sean's extended family includes his older sister, Laura, his older brother, Fabio, his grandfather Kinjiro, his father Yuichiro, and his mother Brenda.
How to unlock
- Win 40 Survival Mode matches with Laura (Street Fighter)
- Play 4295 matches
For both methods, you must fight Sean at the Hillside Plaza. Alternatively, you can avoid clashing with him by wishing for him from Black Star Shenron, or purchasing him in the Smash Store for 375 Smash coins in the Smash Store. After defeating Sean, wishing for him from Black Star Shenron, or purchasing him from the Smash Store, the announcer will say "Someone else has joined the Tourney!" after a Smash Ball appears on the lower-right corner of the screen with a message saying "You can now use the amateur Brazilian jiujitsu fighter idolizing Ken, Sean Matsuda!" He will be seen left of Fenny, right of Brixton, below Zenitsu and above Donna (Doctor Who).
Character Select Screen Animation
Dribbles his basketball.
After the announcer calls his name
Shoots his basketball and says "Hi! Nice to meet you! Huh?" then assumes a fighting stance as the camera zooms.
Sean Tackle (Neutral)
Sean rushes forward. If B is held, Sean comes into contact with the opponent, Sean will grab the opponent and tackle them to the ground. He then punches them twice before jumping away. If the tackle is missed or blocked, there is a considerable window in which Sean can be punished.
Ryuubi Kyaku (Side)
Sean performs a tumbling-over wheel kick forward with his leading leg.
Dragon Smash (Up)
Sean jumps doing a double-handed smash punch that is swung upward.
Sean flies forward kicking both feet four times.
Hadou Burst (Hyper Smash)
Sean gather ki and fires an extra-powerful Hadoken which moves very fast and strikes so powerfully it blows his opponent back after a zooming hit of the effect.
Hyper Tornado (Final Smash)
Sean begins with a dash that resembles the Sean Tackle, followed by an uppercut, a series of kicks that resemble Ken's Shippu Jinraikyaku, an upward-rising Tornado, and finishes by knocking the opponent away with a quick mid-air Ryuubi Kyaku for a total of twelve hits.
- Sean blows a bubblegum into a bubble and says "Yay!"
- Sean jumps doing a swing punch then raises his fist on landing shouting "I did it!"
- Sean drops to his knees and raises his fists saying "Call the fire department, cause I'm on fire, baby!"
Sean Matsuda runs and shoots a basketball, then says "Don't hold back!"
- Sean's rival is Eiji Shinjo's nephew and inheritor of the Byakko no Taichi Katana, Subaru.