How do I get past the Research Facility (2) in Super Smash bros Brawl?

Okay so I'm playing with Samus and I'm on level 19 which is The Research Facility (2) After I've defeated all the ROB blasters and the Glice I'm stuck. I can't leave. There is a platform with a red base but I can't get through it. What do I do? I used this website a href="http://www.supercheats.com/guides/super-smash-bros-brawl/the-research-facility-2" rel="nofollow"http://www.supercheats.com/guides/super-…/a BUT I still don't get HOW i'm supposed to get through the platform!!!