System Defender

Hello Penguins and Humans. It's Kirbyfan2. Recently, somebody asked me about the System Defender stamps. Well, they didn't say which one. So, I'll just pick one. For those who need the stamp for only using one type of cannon, I recommend using red ones. Go to the first mission and put in as many reds as you can. Keep putting in more until there are no more stops left. This next one will get you three stamps. Go to the Ultimate Protobot mission. Put in cannons every socket. Make sure NOT to upgrade them. Once you have defeated 250 bugs, you can start upgrading. You should have stamps for filling all sockets, beating 100 and 250 bugs without upgrading, and winning with only one type of cannon.