The Excite Sping is an item that appears in Mario & Luigi: Superstar Saga. It can only be obtained by making a different kind of espresso at Starbeans Café for the third time. Professor E. Gadd will then appear and gives the Excite Spring to Mario and Luigi.
The Excite Spring is mainly a small, red spring.
When equipped, the Excite Spring can let Mario or Luigi stay in the air longer when dodging attacks. This is espically helpful in dodging ground attacks from enemies.