Wario Land 4

About

Your own cartridge, the one the warioland4 decompilation rebuilds byte for byte, on mGBA compiled to WebAssembly, with save states.

Wario's back for more...and more...and MORE! Hey! You! Yeah, you! Listen up when Wario's talking to you! I just read about this legendary Pyramid of Gold, and you're gonna help me go explore it. There's lots of treasure in there for the taking, and I want it all. I'm sure there are gonna be all kinds of weird enemies and big, bad bosses in there, so if you don't think you can hack it, put the game down now. I don't want any losers making me jump into bottomless pits, you hear me? -Wario invades the Game Boy Advance! See Wario in all his greedy glory as he explores vivid worlds made possible by the power of the GBA! -Flex your muscles! Wario is no longer immortal, so you'll have your work cut out as you roll, punch and jump your way to tougher and tougher challenges. Wario will get stung by bees, zombified, bitten by bats, set on fire, and much more - what a way to make a living! -Over twenty enormous stages await! Hunt down CDs for your listening pleasure, or collect treasure to spend on all-new items that you can use against the most bizarre bosses ever!

Description from IGDB.

How it runs

Project

warioland4Decompilation. The original binary turned back into source code, function by function.By TsilaAllaouiLicense: MIT

Port

andrewnakas.github.ioBy Andrew Nakas · WebAssembly, on the mGBA emulatorOnline since Oct 5, 2026Source: andrewnakas/warioland4-web

Player

mGBA 2.5.1By Jeffrey Pfau (endrift) and contributors, built for the web by Nicholas VanCise (thenick775) · MPL-2.0Play opens it on this site. The port above is under Other ways to play.

Controls

Arrows move. X is A, Z is B, A is L, S is R, Enter is Start, Backspace is Select. Hold F to fast forward, R to rewind. On a touch screen, the buttons show on the screen.

Plays with

Keyboard and touch. Saves in your browser, with the moment you left.

You need

Your ROM: Wario Land 4 (USA, Europe), .gba, 8 MiB. You pick the file in the player, which keeps it in your browser.

Original

Nintendo R&D1, 2001, Game Boy Advance