El Dorado is a unit original to Metal Slug Attack, first appearing in the Extra Ops titled Golden Soldier (as a pre-acquisition unit, obtained by purchasing 10,000 medals). He's currently (at the time of v1.14.1) available via the Medal Crank.
El Dorado rides a customised Unit suit (painted in a similar manner to Iron Man's suit - he himself appears to be an expy for Tony Stark), with a thruster capable of sustained flight. While initially hovering low, activating his special attack sends him near the top of the map, where he remains until such time as he's shot down.
(Spread) A limited pulse from an arm-cannon.
(Spread) A multi-pulse burst. The shots fall if El Dorado is flying high.
(Spread) El Dorado flies to the top of the map. Subsequently using his special again causes him to fly over his opponents, thrusters flaring.
|50||17500||19250||21175||23292||25621||* HP might be increased by skills / items or buffs|
| Strengthen Driving|
Movement speed will increase by (0.10, +0.2 each level).
| Strengthen Weapons|
Strengthen all attack power by (20%, +1% each level).
| Golden Don|
Number of Special Attacks will increase.
| Emergency Evasion|
(10%, +0.5% each level) chance to evade enemy attack.