Who is Martin?

Maybe some of you are wondering who this Martin is, even though I told you he is my assistant programmer. You may be asking yourselves what he does? Well, ever since the release of version 0.3 a week ago, he has been helping me make special effects and other cool things that I'm sure have made Scratch better, in addition to helping test for glitches. What things, you ask? Well, he has replaced the annoying pop-up messages with these:

He also helped with a little healthbar effect, and as well as this cool effect that happens every time you get hurt: