Varia Suit

The Varia Suit is a suit that Samus either has at the beginning of the game or gets afterward. It is usually the first upgrade to her Power Suit when she starts out with only that. The Varia Suit allows Samus to enter superheated rooms and sub-zero areas without being damaged. In Metroid: Zero Mission it allows Samus to walk in acid, but not in magma (magma has a redder color, whilst acid is pinkish). The following is a chart of what it can do in the games: