

Mario Bobble is a rom hack of Bubble Bobble for the Famicom Disk System.

A Christmas themed Super Mario Bros. mod
This hack replaces the game’s levels with new custom designed levels built using the game’s existing assets. The tutorial, Jungle Jam and boss levels have not been edited. In addition to the custom levels, this hack also includes: - Character selection screen in adventure mode: unlocked after completing adventure mode (or by using the password 00011000). - The tutorial and intro can now be skipped by holding select when starting adventure mode.

Platform / Puzzle / Strategy / Action / Erotic
Miss Bubble II is an adult bootleg/hack of "Bubble Bobble". It features 100 single screen levels with photographic semi-nude images for backgrounds. The background changes every three levels. The player takes on the role of one of two yellow and green colored mice. Armed only with the ability to blow bubbles and jump, the objective is to trap and kill all of your enemies within the bubbles to advance to the next stage. The bubbles can also be used as temporary platforms, to help the mice reach previously inaccessible areas of a level. If a player is touched by an enemy then the player dies. Any trapped enemies who are not killed quickly enough will turn red and escape their bubble prison. These angry enemies are much faster than before, making them harder to kill. Enemies also become angry if players are taking too long to complete a level. Defeated enemies are turned into bonus fruit items that can be collected for points. On many levels, special bubbles appear such as water filled bubbles appear. These can be burst by players to release their contents and destroy enemies. The water bubble releases a torrent of water that will quickly flow down the platforms to the bottom of the screen. Any enemies caught in the flow are killed. Bubbles containing letters also appear. The aim is to collect the letters needed to spell the word along the side of the screen. Once the player loses all of his lives the game is over. Upon continuing, all remaining enemies return to their un-angered forms.

Platform / Puzzle / Strategy / Action / Fantasy
The “Bubble Bobble: Lost Cave” Project aims to create a new experience for every lover of the classic Bubble Bobble arcade game, designed by Fukio “MTJ” Mitsuji and crew back in 1986. The aim is to provide the original Bubble Bobble coin-op with a whole hundred of different levels. Gameplay-wise, the game is going to retain all the mechanics of the original, but Bubblun and Bobblun will have to face a 100 challenging new stages.

Platform / Arcade / Action / Party
Super Mario War is an open-source, cross-platform, platform-adventure video game and level editor released on 16 December 2006. It is based upon gameplay elements and audiovisual media that are cloned from Nintendo's Super Mario series. The game centers on players fighting each other by one player jumping on the other player's head, or by making use of items, which can be picked up during gameplay.

Shooter / Platform / Action / Science fiction
Layla: The Iris Missions is a complete overhaul of the Famicom game Layla. It features all-new levels, altered graphics, an original and much-expanded soundtrack, and many tweaks to game mechanics, with the goal of creating a more modern game experience without compromising the core grabbing-cake-and-ice-cream-on-roller-skates gameplay.

In this romhack Donkey Kong kidnaps Pauline again but gets help from the four Pac-Man ghosts Blinky, Pinky, Inky and Clyde. Jumpman and Pac-Man must join forces to save Pauline. Each board contains a number of pellets that must all be picked up before the board can be finished. You start each board playing as Jumpman, but you can temporarily transform to Pac-Man by picking up a power pellet. When you play as Pac-Man you are invincible and can chase and catch the ghosts. Make the Jumpman/Pac-Man team a success and save Pauline, but ... don't forget to pick up all pellets !!!

Released in 2011 on Intellivision, by Carl Mueller Jr..