So I have updated the game! But I probably have missed something to add to the list below. I've been doing a lot of work :D 

This is currently what I fixed and added: 

Graphics: 

Replaced coins with blue glowing orbs

Updated spike sprite

Updated door sprite

Improved "Orbs Left" text

Updated the background

Updated ground sprite

Added some misc (Torches) 

Updated the menu

Updated level 1 background & atmosphere

Sound:

Change jump and death sound

Particle:

Changed running particle

Added jump particles

Added death particles

Added fireflies

Added Lava

General fixes: 

Made camera more smooth

Made 4 more levels (7 levels in total)

Added Pause Menu

Debug menu hidden

added SAVE and LOAD system

Game mechanics: 

Added elevator area

Added jump timing area

Added infinite jump area

Updated movement (Friction, acceleration)