Used external cheat codes to play as the 1st Form version of Dio in the arcade version of Jojo's Bizarre Adventure. Read on below for his moves and more information...
This is a demonstration of the 1st Form of Dio in the arcade version of Jojo's Bizarre Adventure. He's the last boss you fight at the end of the game. He comes in 2 forms - the 1st form has him wearing his jacket and is 'weaker', and his 2nd form is the 'full power' Dio where he doesn't have his jacket. Normally in the game when a human player selects Dio, he is automatically in his 2nd form. You can never get to play as him in his 1st form, so there is no legitimate method to select the 1st form of him in the game. Nevertheless, he can be accessed with external codes and is fully playable.
1st Form Dio is programmed as a flag that activates on regular Dio (2nd form) when the player faces against him for the 1st Round in 1P arcade story mode. This means that he is not a 'separate' character (like Shin-Bison in SFA3). The 1st Form flag seems to replace specific sprites and moves as well as adding a different Taunt (where he claps). Here are his moves:
Key: LA = Light Attack; MA = Medium Attack; HA = Hard Attack; S = Stand; 2A = any two attack buttons together; (both) = both Alone and Stand Mode
===== Special Moves =====
-- Blazing Punches: QCF + LA or MA or HA (both) (in Stand press A repeatedly for more hits, plus can be done in the air)
-- Charging Punch: QCB + LA or MA or HA (both)
-- Teleport: F,D,DF + LA or MA or HA (alone)
-- Sneak Punch: F,D,DF + LA or MA or HA (stand)
-- Laser: F, HA, MA, LA, F (alone)
===== Super Moves =====
-- Knives Shot: QCF + 2A (both) (in Stand can be done in air) (requires 1 Level gauge)
(full description on YouTube channel: https://www.youtube.com/watch?v=Usfl49MfZKk)