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M4 MS1stM

Underground Battle Pass is the fourth mission of Metal Slug: 1st Mission.

Mission Synopsis

The Hero traverses through an underground sewer avoiding the Rebels, piranhas, bats, and latching rats. If the player completed Mission 3 by the second hidden exit, the Hero enters this mission from a later point. The various lights surrounding the sewer's walls block the player's projectiles and dims the stage as the light dissipates.

Routes

Mission Entry

  • Access the Hidden Routes of Mission 3 (Battle in the City).
  • Incomplete Mission 9 (Discovery of a Secret Passage).

Mission Departure

  • Mission Complete: Proceed to Mission 10 (Night Flight).

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