This is a modification of the old video game Metroid. What makes this modification different from mods for games such as Minecraft is that there is no support from the original game’s developers for creating such "hacks". The support for modification comes from a community which has developed various tools and documentation. I was able to learn a little bit of Assembly and a fairly large amount of hex-editing in order to modify otherwise unmodifiable areas of the game. Most graphics are my original graphics, only a tiny bit is modified from the graphics existing in the base game.
For those without a legal ROM of Metroid, in order to see a bit more of the level design, this is a view of the map of the environment I have created so far.
The hack's ips modification data can be found here at the bottom of the first post: