Platformer Prototype (Azadire72)

A prototype platformer game made on Gamemaker Studio 2. Its my first time using the engine and developing a game in such a way for a university project. I want some feedback on the prototype in hopes that it will help me to complete the full game in the future.

Things i know i am missing:

Music/Sounds

Player Death

Checkpoints

Crouching/Crawiling

Jump buffer/Wall jump buffer

Attacking (both for player and enemies)/Damage

Enemies

HUD elements

Dashing.

Controls:

A & D = Horizontal movement

Space = Jump

R = Restart