Mecha Allen is the independent variant of the original Allen O'Neil in Metal Slug Attack. The Mecha Allen's description is much more different than the ones in Metal Slug Defense. Mecha Allen is stronger than the original Allen, but is weaker than Wrath Allen. It gains an increased boost in its stats, but loses the stun capability that original Allen had.
Knife - A close-combat melee attack.
Heavy Machine Gun - Fires a heavy machine gun, which has blue projectiles rather than the normal orange ones.
Grenade - Tosses grenades at the enemy. Attack range can increase (Requires 2).
|50||56000||61600||67760||74536||81989||* HP might be increased by skills / items or buffs|
| Strengthen Weapon|
Strengthens Attack power by (10%, +0.5% each level).
| High Jump Bombing|
Area of Special Attack will increase.
| Iron Body|
HP will increase by (20%, +1% each level).
After being destroyed, revives only once with (10%, +0.9% each level) HP.