Design Your Own Tower is a new feature of the next Bloons Tower Defense game. It is part of Creation Mode, and allows you to make your own tower that has whatever upgrades and powers you want (you can set the amount of damage the tower and each upgrade does, the bloons the tower targets, its targeting styles, and more), and that can look any way you want. Any projectile (or anything else) that is shot from the tower can be set to look any way you want as well. You can submit the tower to the Sharing Center when you're done.