Every single warp cannon location in New Super Mario Bros DS and how to unlock each one. 00:00 World 1Cannon (Leads to World 5) 1:49 World 2Cannon (Leads to World 5) 5:10 World 3Cannon (Leads to World 6) 6:44 World 4Cannon (Leads to World 7) 8:42 World 5Cannon (Leads to World 8)