A downloadable game

Get this game and 4 more for $20.00 USD
View bundle
Buy Now$9.99 USD or more

neMULEsis is a Contra-like run and gun action game for the Nintendo Entertainment System (NES). Players play as a MULE commando who must shoot its way through five stages and destroy the Space Pirate hivemind.


Colonialism and crime plagued Irata for generations. But after a rogue Leggite toppled the Spheroid cartel, the planet began to heal. All creatures of the world rebuilt together.

Yet just as the Irata sun rose over a new day, an old terror returned from the skies: space pirates. The parasitic space pirates, always hungry for crystite, descended like a storm on the planet, darkening it with the whole of their wriggling, eldritch empire. Their larval spawn infested the wampus, the flapper, the gollumer, and every creature that dared breathe. All were folded into the dark legion from beyond the stars.

Thousands died that first day. And thousands more in the days following. 

The last bastion of survivors gathered together deep in the wart worm underground. In secret they built what would become their last hope, a MULE commando capable of fighting back and destroying the space pirates permanently.

They called this fateful mission: operation neMULEsis.


This game features five stages, over 14 unique boss battles, multiple weapon pickups, an action-packed soundtrack, and more!

* * *


Note: neMULEsis is best played with a controller.

Right/Left                           - Move Right or Left

Up                                            - Aim Up

Down                                     - Crouch/Prone

Down + B                            - Crouch/Prone Fire

Down + A                             - Drop through floor (contextual)

Start                                       - Begin Game /  Pause

B                                              -  Fire weapon

A                                             - Jump

* * *

neMULEsis is the fifth game in the MULEniverse series, which is both a tribute to and narratively extends the work of Danielle Bunten Berry's MULE economic simulator game.

The MULEniverse games include:

1. Wampus

2. Wart Worm Wingding

3. Bat Lizard Bonanza

4. Leggite Luta Livre

5. neMULEsis

* * *

Music and sfx by Jordan Davis.

Check out more of Jordan's work here: https://soundcloud.com/user-634230995-350638590

* * *

FOR THE BEST EXPERIENCE: I recommend getting an original NES controller and a USB adapter for it. You can find one here or here. You can also use any gamepad for a similar experience.

For really enterprising types, this game is fully playable on an actual NES. You can use either an Everdrive, a PowerPak, or flash an empty cart, as long as each has mapper 30 support.

* * *

neMULEsis was made possible thanks to NESMaker, a tool developed to make NES development more accessible.

In order to play neMULEsis, you'll need an NES emulator. I recommend MESEN. Many emulators do not have mapper 30 support, which is the mapper NESMaker uses for its games. 

Once you have MESEN downloaded, start it up and open the neMULEsis.nes ROM. The game should work fine.

FOR MAC USERS: Download OpenEMU for Mac. When you open the program, right click on the Nintendo (NES) category on the left hand sidebar and select "Default Core." Then select FCEU.

* * *

More from this developer: https://johnvanderhoef.itch.io


Get this game and 4 more for $20.00 USD
View bundle
Buy Now$9.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $9.99 USD. You will get access to the following files:

Nemulesis_Cover_Art_Manual_ROM.zip 21 MB

Development log

View all posts