Event 27: Cold Armor
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In Cold Armor, the player must defeat three Metal Samuses as Samus (in her Varia Suit) on Brinstar Depths. The player-controlled Samus has one stock, while the opponent Samuses each have two. Though there are three opponents, they will not simultaneously attack the player.
The damage meters of the three Metal Samuses use stock icons that are a darkened variant of Samus's green stock icon; this is a subtle reference to the original website for Smash 64, which claimed that Samus's green costume was intended to be a "mass-produced" variant of the power armour.