Worlds 4, 5, and 6<br /><br />Custom Levels in World 4:<br />W4-1: Showcase 1-2<br />W4-2: Pleasant Pastures<br />W4-3: Prehistoric Plains<br />W4-4: Showcase 25-2<br />Boss: Larry Koopa<br /><br />Custom Levels in World 5:<br />W5-1: Showcase 5-3 (originally slated to be in World 3)<br />W5-2: Showcase 38-3<br />W5-3: Blue Spectrum Bounty<br />Boss: Morton Koopa Jr.<br /><br />Custom Levels in World 6:<br />W6-1: Lakitu Glacier<br />W6-2: Icy Terrain<br />W6-3: Sunshine Slopes<br />W6-F: Irregular Fortress<br />Boss: Lemmy Koopa
