Hello, my name's Mr. P. Pretentious, or you can call me Mr. P.
I'm an evil gentleman, after I heard your resident mad doctor left (I think he was called Dr. Wily II), I decided to take his place to take over your boards.
When I first got here, I've seen wondrous Robot Master creations over at your Robot Convention (Fan Creations board), and I've recreated some of them for my ambition. Treat it as an honour to have your own Robot Masters taking over your precious boards.
The first Robot Master I have recreated, is from a certain evil Dr. Light from an alternate universe.
His name is Barrier Man, my MPN-001 (Mr. P. Number). He has a special Barrier mode, as shown in the second sprite. In this mode, he's invulnerable to attacks. He can generate an orbiting shield of rainbow colours, known as the Rainbow Barrier.
Here's Megaman demostrating the Rainbow Barrier: