DLN-000, Protoman (or DRN.000, Blues, depending on localization) is the older brother of Mega Man and Roll, created by Dr. Light as a prototype humanoid robot. Originally fought in Mega Man 3 as a mid-boss, and later in the same game fought as a boss under the allias "Break Man", his first playable role in numerical games was in Mega Man 9 in a DLC. Proto Man is one of the additional player characters available as of version 1.3.0 alongside Bass. He is typicall used defensively due to his limited shot count and a shield that can reflect projectiles.
In Mega Man Maker
His gameplay is mostly influenced from his playable appearance in Megaman 9 and Mega Man 10
As a playable character, Proto Man automatically has the ability to slide and charge his Proto Buster in the Mega Man 4 Charge Shot style. His Charge Shot process of his buster sounds different from the most known charge sound from the NES era games. If Proto Man is doing an uncharged Proto Buster shot, he can only have up to two bullets appearing simultaneously. This also extends to the Proto Strike projectiles. Unlike his appearance in Mega Man 9 and Mega Man 10, Proto Man does not lose the charging process if he receives damage. Proto Man shoots slightly lower then Mega Man or Bass due to his sprite difference, and therefore weapons such as the Proto Buster or Needle Cannon are fired a few pixels lower than when Mega Man or Bass fire.
He comes equipped with the Proto Shield, which will reflect or block most projectile attacks in front of him while jumping: homever, shooting while jumping will deactivate this shield until Proto Man lands. The attack reflection of the Proto Shiel makes him able to defend and counter-attack even if he has no ammo for his currect weapon or is equipped with only Nothing. If a projectile is reflected, the projectile will take the properties of whatever weapon Proto Man is currectly equipped with, allowing Proto Man the potential to break Weapon Blocks without even firing his weapon. The Proto Shield can also protect Proto Man from Elec Beams and Fire Beams to some extent, by getting the current beam deactivated if Proto Man uses his shield in the most distant half of it. The Proto Shield is the closest in funcionality to its appearance from Mega Man 10.
In the level setting menu, Proto Man has two settings specific to him - Proto Strike and Double Damage. Enabling Proto Strike will turn any shots made with the Proto Buster into the Proto Strike, which does equal damage to charged shot. Proto Strike made it's only appearance in Mega Man Powered Up as main weapon for Proto Man to use. Enabling Double Damage will cause him to take double the damage from all sources.
In the weapons menu, Rush Coil and Rush Jet are replaced by the Proto Coil and Proto Jet respectively. They are just reskins and function identically to the original utillities, homever Proto Jet will temporarily remove the Proto Shield. Proto Coil replaces the Power Adaptor, Jet Adaptor and Super Adaptor, although Weapon Blocks changed to these Proto Coil options will only be destroyed with the specific Proto Coil it was set to.
Similar to his original appearances in the games, his whistle from Mega Man 3 plays whenever Proto Man enters a level or respawns upon death. Proto Man's victory pose is taken from Mega Man 2: The POwer Fighters