first click the remix button then click 'see inside' then backpack the two text engine sprites and import them into your games and change the text to what ever you want
Thanks to @xamuil2 for the tutorial and @Boko100 for the thumbnail, if you want to have a good thumbnail like this one go to this link: https://scratch.mit.edu/projects/806528709 and @ShiftClickLearn for the animating thumbnail