Overview

The game features hand-drawn graphics and animated cutscenes by Production I.G. (a well-known anime company). The graphical style follows that of Super Mario Land 3: Wario Land, Wario Land 2, Wario Land 3, and Wario Land 4, but this is the first to have hand-drawn graphics.
Story
The land of Yuretopia is shattered by the evil Shake King. He claims all of the world's inhabitants and the Bottomless Coin Sack. Captain Maple Syrup watches the world being captured from somewhere else, and desires the legendary treasure for herself. She has Wario go to help, when one of the world's inhabitants escapes and begs Wario to become a hero for the kingdom.After defeating the Shake King, Wario finds meets Queen Merelda, only to throw he aside and run after the Bottomless Coin Sack. He is filled with happiness, until Captain Syrup claims the treasure which the Merfle promised to her. That angers Wario and he attacks Merfle as the game ends.
Gameplay

Every level has a set of missions a player can do. Like most games, this challenges get increasingly difficult as the game goes on. Missions can include getting a certain amount of treasure, back-tracking before a certain time, and not getting hit during the entire level. Along with those, missions can also deal with how the level is designed. Examples of this are blowing up all the bombs in a level or not falling in water.
Treasure is always on the mind of Wario and it shows in this game. Throughout each level, they're are coins just floating around for Wario to pick up. Along with those, there's coin bags which he has to shake to get all the shiny winnings. All this treasure isn't just for show. Players can use it in the shop Captain Syrup opens up early in the game. New life vessels and world maps are some of the items available. There's also secret treasure in every level that players. Each treasure found has it's own unique description.
