Editing Small Mario

In ''[[Super Mario Bros. 2]]'', Mario, Luigi, [[Toad]] and [[Princess Peach|Princess Toadstool]] start out each life in Super form (at the start of each level, they only have two hit points; they start with the current maximum hit points full after defeat), regardless of what their form was upon defeat or exiting the previous level. They become Small if they only have one hit point left. By finding the two [[Mushroom]]s hidden in [[Subspace]], the characters can extend their maximum hit points to four; also, upon the Mushroom's collection, the character always regains full health. When characters are in their Small forms, only their lower halves shrink while their upper halves remain intact. In the ''Super Mario All-Stars'' remaster and ''[[Super Mario Advance]]'', this was changed so that their entire bodies shrink. Peach is also affected, as her hair becomes shorter as she shrinks into her Small form, rather than remaining intact like in the original version.

In ''Super Mario Advance'', the Small form persists between levels (unless the player finished the previous level in their Super form, in which case it transfers to that level for that life only, even if the player switches characters), the characters start the game and each life in their Small forms with only one hit point remaining (of the current maximum), rather than their Super forms, and the maximum hit points per level is five, due to an added Mushroom per level.