Thanks dude :) That was my intention but I ran out of time. After every so many waves you were suppose to choose a "limitation," such as less time to reload, more enemies, easy words get removed, less damage etc. But alas, I didn't have enough time. At wave 20 however it does use a new pack of "extreme" words that are like 10-12 letters long. But not even I can make it to that wave haha!
I'm glad you enjoyed it though. Thanks for playing :)