What other way would you like to have besides textbox?
If it's keyboardinput you want that would seem the most logical.
If it's the look of the textbox you don't like, it can be adjusted or you could use the input while having the textbox invisible to create a spritefont portraying the textbox input.
I think there are also some other solutions on the forum, because coccoonjs didn't have textbox. Searching for coccoonjs and textbox should give some ideas.