Their base, overrun by a rogue AI they could no longer control, is now a liability — and ADAM wants Samus inside before the Federation wastes the opportunity. Metroid SR387 by OneOf99 and NathanTech is a Zero Mission hack built around a focused infiltration mission with its own original story, told through ADAM's opening briefing and carried through the layout and atmosphere of the base itself. Custom cartridge, plug and play. Compatible: GBA, GBA SP, DS, DS Lite.