Open Katana Simulator on Roblox. On the upper side of the game, click the 'Codes' icon. Copy each code from the guide and paste it into the 'Type code here' textbox. Click on the 'Enter' button and ...

Keep in mind that for both codes and presumably for the other ones that the developers might share in the future, you need to have joined the Roblox group to redeem them. In order to get your hands on ...