Wario Land: Super Mario Land 3

Wario Land: Super Mario Land 3 is the first game in the Wario Land series and the last game in the Mario Land series.

Debug Mode
A simple debug mode remains in the game, accessible by pressing Select 16 times while the game is paused. A blinking cursor should appear. Hold B and press Left/Right to move it. Press Up/Down to change the values of your number of lives, coins, hearts, and the timer.

Holding A + B and moving the cursor all the way to the left will highlight the Wario head; unpausing will change your current form (in the order of Small, Normal, Bull, Jet, Dragon).

(Note that pressing Select a 17th time will make the cursor disappear. However, if you press Select 256 times after the initial 16 presses, the cursor will appear again. This happens because memory address which stores the Select presses loops after 256 presses.)

Unused Bobo Scene
A significant number of tiles relating to Bobo are unused. Note that Syrup Castle is in the background. This makes up a very odd and interesting scene.
 * Bobo never sits down.
 * The emblem on Bobo's chest is different. The normal emblem has no horns and looks more like a skull.
 * It's highly unlikely that Bobo even moved in this arena. The Bobo object actually moves around foreground tiles (a common trick that early Nintendo systems used) that compose the main Bobo body. Here, the background is far too complicated to have Bobo move around without severe graphical glitches.
 * The overall design of this room doesn't really match the S.S. Teacup. It's possible that the Bobo fight was meant for Parsley Woods.

Unused Blocks


Two generic blocks are unused. The first is an intermediary cracked block that probably would have appeared as Small Wario (you'd have to hit the block two more times to break it), while the second is an alternate version of the skull that appears above stage entrance doors.

They were replaced in the main block tileset with the switch block graphics.

Wanderin' Goom Attack


Turns out that the Wanderin' Goom may have had an attack at one point! This spitting graphic and projectile are all that remains.

Unused "W" Flag (Syrup Castle)
Using the Debug Mode, it's possible to display a "W" flag on top of Syrup Castle, which is normally not possible since the game doesn't save after you beat this level (it's the final level in the game).

Inaccessible blocks


After draining water from Course 31, some of the heart blocks become inaccessible. To stop Wario from hitting them, programmers put in four invisible blocks, but they're also impossible to hit.