The following are known Atmosphere / EdiZon / SXOS Cheat Codes for ACA NeoGeo: Metal Slug 4 on Nintendo Switch (Switch).

Title ID: 01009CE00AFAE000
Build ID: bb57e52f01ebe5e8

[Invincible]
010F0000 01283090 00000010

[Moon Jump]
80000002
040F0000 01283040 9AAA0007
20000000

Title ID: 01009CE00AFAE000
Build ID: f6b3aba9ccf21914

[P1 Infinite Ammo]
02000000 01291142 0000FFFF

[P1 Infinite Bombs]
01000000 0129113C 000000FF

[P1 Infinite Lives]
01000000 01282DD8 00000009

[P2 Infinite Ammo]
02000000 01291152 0000FFFF

[P2 Infinite Bombs]
01000000 0129114C 000000FF

[P2 Infinite Lives]
01000000 01282E88 00000009