Okay, so here's what you're gonna do. If you want a part, you go inside the project, and there will be a character tryout area. Find the character you would like to voice act. There will be all the characters in there. When you find the one you'd like, go in the character's sounds and record your tryout. Say the lines that come in the character sprite. After you're done recording, name it: "(Your username)'s Tryout". I'll check for your tryout soon. Also, tell me if I forgot any characters. I'll answer any questions you have in the comments.