Alpha

Alpha, known in Japan as Proto (プロト), is the final boss of MegaMan Battle Network 3, a program that takes the form of an armored mass of slime.

Strategy
Alpha has 2000 HP and can only be damaged by hitting the center until the substance covering the core vanishes. After completing the game and unlocking the Omega Navis, Alpha will become AlphaΩ, which has 3000 HP.

AlphaBug
AlphaBug and ???? are enemies from MegaMan Battle Network 3 related to Alpha. All those enemies can regenerate fast, and they attack by trying to absorb MegaMan.


 * The first ???? is red and has 100 HP, and is only found in the demon statue computer in Hades Island and the lion head in the hot spring of Ura Inn. Besides the appearance, it's believed to have no relation to Alpha.
 * The second ???? is blue and has 140 HP, and there is only one fight against it in a AutoTank. It seems to have been created by Wily based on Alpha to control machines, or a part of Alpha controlled by Wily.
 * The third enemy with this appearance is named AlphaBug. It's yellow and has 180 HP, and is found in Alpha in the final part of the game.
 * The last is AlphaBugΩ (Omega / SP), which is purple and has 300 HP, and is one of the omega viruses that appears before the fight against SerenadeΩ.

Trap
Inside the four robots from Wily Castle there are invisible puddles of Alpha that acts as traps. If MegaMan steps in one, he will return to the last "checkpoint". They are only visible with the "Alpha" program for the Navi Customizer given by Lan's father in one e-mail.

Trivia

 * Alpha bears a resemblance to the deletion program D-Reaper and the Mother D-Reaper form from the anime Digimon Tamers.
 * Alpha is likely based off of Green Devil as they share the same slime like body and weakness in the middle of the slime.
 * Alpha's original name, Proto, could be based off the fact that it was the prototype version of the Net.
 * Alpha's english name, Alpha, could be based off the fact that it was the first (Alpha not only being the first letter of the Greek alphabet, but is usually used to mean first just as Omega is used to mean last) version of the Net.