Mar2D is a demake of the steam game Mar, but in 2D, made to not only make a 2D experience for Mar, but also improve the game, with things suggested but not added which includes:

Stamina
Player talking to himself when a map starts
More easter eggs...

Currently under developement, you can try 2 early versions right here:
Mar2D Prototype 1, only includes a main menu and credits

https://www.mediafire.com/file/r64pol186qb4shc/mar2d+early+test.zip/file

Mar2D Prototype 2, includes a playable map, walls, a WIP monster and an easter egg somewhere

https://www.mediafire.com/file/xsm8pyo8ugdzvnd/mar2d_prototype_2.zip/file

Mar2D Prototype 3, includes options, a pause menu, improved walls, a new easter egg, links in the main menu that lead you to this website, and music!

https://www.mediafire.com/file/38ycdfd5ftbqfef/Mar2D+prototype+3.zip/file

Game Engine : Gamemaker Studio 2