Street Fighter Alpha 3 Cheats
for Dreamcast

Play as Shin Gouki

At the character select screen, select Gouki, hold START, and press an action button to choose Shin Gouki. Shin Gouki moves faster, has a double air fireball (4x in V-ism when a combo is active!), and juggles opponents more easily.

Final Battle vs Shin Gouki

Select final battle, go through what you would normally as you were fighting Vega. Right after the 'select speed' screen press and hold all buttons (excluding start button) Gouki's portrait should appear and you'll now fight against him.

Get the 6th ISM Plus

Raise a character to level 32 in World Tour mode. When you reach the last
stage (in Japan), either win or lose; it doesn't matter as long as you get
to the ending credits. Save the game and your character should now have an
asterisk (*) next to him/her. Go back and beat the arcade mode with that
character without continuing to receive the 6th ISM-Plus, "Guts". This
raises all of your stats slightly.

Play as Super Akuma

At the character select screen, highlight Akuma, hold start, and press A.

Get EX-Vega(Shin-Bison)

Beat the game with a World Tour character that you've entered into the game. Then beat arcade mode with a difficulty of 8 and without continue the game. Once you got that, you can use EX-Vega in arcade, vs., and in training mode by highlight Vega and hold on to start and any button to select him.

Tougher World Tour

Score more than 3,000,000 points in WorldTour mode. After the final battles
against Juli/Juni and Shin Vega, you'll get to "GOKUENTOU" island where
you'll face your toughest battles yet! Good luck!

Hint: 20'000 Points For Sean (Alternate)

Ryu is the best to get this done with because he has the shoryuken. When Sean throws the basketballs, instead of parrying them, you've got to hit them using the shoryuken (uppercut). You have got to hit all 20 balls. If done correctly, there should be a "PERFECT" in red with 20,000 points.