I have had lots of trouble playing shredsauce with my Chromebook. I have tried many different ways and finally, I found one that works. Here are the steps. Let me know if it works for you too.
1. Look up shredsauce on google
2. When it pops up click the button that says levels below the main title.
3. Type in a level that you know (summer camp, J skis, etc.)
4. click on the level and hit play (it may take a while because Chromebooks are really slow)
5. If it pops up an ad watch the video then wait, eventually it will pop up and let you play.
Thanks for reading and good luck!