This is the best way to make sprites talk. Letters appear one by one in the text message, rather than all at the same time. You can use this way to make really nice speech!
I am not the original creator of this text message, but I succeeding in recreating it in my own way. Ex:Realproject,etc. Also, thanks a lot for Realproject's project also about render text (https://scratch.mit.edu/projects/367599298) which made me fix the 'say forever bit'.
