Spider
Actually, Spider DID blow himself up to open a door. He used the six-handed guy to help him blow it up. It's simply because X didn't bother looking for a switch and instead tried to blow up the INDESTRUCTABLE door.
About the girly voice, try playing X4 when it's dubbed into English. They used the same voice that they used for Megaman in Megaman 8.
Just so you know, Epsilon is Black (African-American Black) and, by deploying units, you can get all the info and pics you need on the bosses.
I love the berserk mentality you give X when it comes to Mavericks.
What's the obsession with giga-city robots blowing themselves up?