Mario has the same size as his popular form Super Mario.
Super Mario is one of Mario's Power-Ups. Mario can access this form by eating a Super Mushroom. It's his most popular form, although it hasn't many abilities in comparison with most of his forms.
Ability
Mario is twice as big as Small Mario. This lets Mario also break Brick Blocks. His other forms stay as big since the required item, the Super Mushroom, is the first item Mario will meet.
Trivia
- In recent games, Mario's size is the same as this form of him. Because of this, most people call him Super Mario, by his form instead of just Mario.