Colonel Soul is the Double Soul MegaMan.EXE performs with Colonel.EXE, requiring an Obstacle Battle Chip to be used. This is the last Double Soul obtained in the Team Colonel version of Mega Man Battle Network 5, and is extremely helpful in battles where time bombs and the like aren't usable.

Abilities

• Arm Change: MegaMan can change his Charge Shot to any non-dimming elementless chip, that aren't Mega Chips.
• On the enemy field; if enemies are standing near obstacles, these obstacles will transform into soldiers and attack with either a LongSword or Vulcan with an added Paralysis effect. The type of attack depends on which side of the obstacle the enemy is standing on (left = LongSword, right = Vulcan). The Vulcan hits 3 times for 10 damage each, plus double the Buster's rank, while the LongSword hits for 40 damage with an additional 10 damage per Buster rank.
• Charge Shot: Screen Divide (Hits a V formation centered on the nearest enemy in front of MegaMan for 50 damage, with an additional 10 damage for each increase in Buster rank. The V formation landing spot may change depending on enemy locations.)
• Weakness: The Arm Change lasts only while the Soul is active, and once Arm Change is used the Screen Divide Charge Shot cannot be regained. Arm Change also resets the buster charging level to level one while the soul is active, making it impractical to use it as a continuous combo.
• Enemies to use against:
  • Any field with obstacles in enemy area.
  • BomBoy - This soul turns the bombs placed by BomBoy viruses into soldiers that stuns them instead each time they summon one. This gives the player the opportunity to focus on destroying other enemies.
• Bosses to use against:
  • Colonel.EXE - The Colonel Army ability can be used against him when he summons Rock Cubes. Though the players need to push the rock cubes back into Colonel's area with Wind Rack battle chip as air shot and tank cannon requires the player to be in front of the obstacles, which would not work as the obstacles will turn into soldiers when the players line up with them .

Competitive Play

• Colonel Soul's non-Arm Change charge is fast, being good to do some field pressuring.
• Arm Change doesn't go well with the turn time limit, but chips such as Skully and ParaBomb can do some field pressure.

Chaos Unison

MegaMan's Charge Shot becomes Dark Sound, which summons a Trumpy virus that paralyzes all enemies while it plays music. Arms Change still can be performed, but since the Chaos Soul expires immediately afterwards the chip is wasted unless the Trumpy virus is on the enemy's side of the field, becomes a soldier and attacks, and a powerful Chip combo is used afterwards.

Chaos Unison with Colonel Soul.

Concept art of Colonel Soul