Author (XY riny)'s description on TieBa, modified for easier reading:
This is my first ZM romhack, inspired by many hacks. It can be enjoyed by the ordinary player and hardcore player. The level, map, and process are entirely changed with original resources. It's like another ZM.

About difficulty: It's a little harder than the original ZM. You need to know some skills and mechanics like speed boosting and walljump as well as some Shinespark in ZMHT (Zero Mission Hacking Toolset).
You can do a noboss except Metal Ridley and beat the game without passing a door-locked event. Recommended to use savestates while you are challenging 100% and noboss, otherwise you will feel strongly frustrated.

A new skill: Shinespark Steering
①Speed boost counter can't be stopped by jumping ahead
②When you are speed boosting, falling to the ground won't stop speed boost counter
③When you are speed boosting, you can turn back with speed by spinjump + backward direction key 
WARNING: Don't jump left and right meaninglessly or you will be stuck. Such an operation is not needed to play

Other:
①Enables unknown items 
②Unknown items are not necessary in any process and objects collection.
③No hot rooms are necessary to go through without Varia, but you must beat a boss in a hot room to get Varia.
④Somewhere you need to shoot obliquely (I believe they mean randomly/everywhere?)

Some problems I can't solve:
①When you get Gravity Suit, you will get stuck in about 15s. (Unsure what this is supposed to mean)
②Metal Ridley has no escape timer
③BGM switch have something wrong
④The game may be crashed when you do a noboss coming out of Chozodia. But after resetting it will be fine (please save when you come out of Chozodia)

Please enjoy!