At a glance
Tetsuyuki is the end-encounter reference for Mission 1 of Metal Slug 1. It is followed by Mission 2.
Mission numbers refer to the original campaign order. Boss names follow the community mission reference; they are encounter identifiers, not official stage titles.
Forest ruins and waterfall
The opening route moves from ruins into a forest river, then reaches a waterfall. An SV-001 tank becomes available along the way. Rebel infantry, helicopters and Girida-O tanks lead into the Tetsuyuki encounter.
Yellow barrels can trigger environmental destruction. The transition from foot combat to the first Slug makes this a useful place to learn vehicle entry and exit.
Campaign reference: Metal Slug Wiki’s mission overview. Practice suggestions below are our own.
Find your firing rhythm
Try this focused practice plan during your run. These are optional goals to set yourself, not extra objectives or achievements awarded by the game.
Hold fire while changing direction, then release movement without releasing fire.
Choose a landing point before each jump; avoid jumping simply because an enemy appears.
At Tetsuyuki, watch one attack sequence before spending your remaining grenades.
How do I reach Mission 1?
Start a new Metal Slug 1 arcade run to reach Mission 1. Choose Play Solo after opening the game selection, then use START and confirm a character if prompted.
The Play button selects this title in the collection. It does not launch this specific mission, change the original game’s difficulty or unlock later stages. Use the guides below to read ahead while your campaign follows its normal order.
Can I return to Mission 1 later?
In a solo session, pause and use Save State after reaching the point you want to revisit. Open the same title in the same browser and use Load State to restore a compatible saved point. Saving again replaces the previous saved point for that title; a link to this guide does not include your save.
Manual continues include free credits. Automatic continues can be changed in Options & Controls → Gameplay. Neither option is a mission selector. Read the save and continue guide.
Controls for this run
These are Classic keyboard defaults; saved bindings take precedence. Touch uses movement plus A / FIRE, B / JUMP and C / BOMB. Arrange touch controls before a long session, or see all controls.