In the Defend Your Castle credits, clicking the name "SMB3W4" under the special thanks section activates "giant mode," where you fend off giant-sized enemies. The "name" refers to Super Mario Bros. 3 World 4, also known as "Giant Land," home to huge Goombas, Koopa Troopas, and Piranha Plants.
The wiki contains user submitted content and may not reflect the views and opinions of the staff.
Content found here has not been checked for appropriateness or factual accuracy. Wiki help.