Thank you guys for the support!!
Now that I have more time to work on the engine I decided to add as many gimmicks as possible while fixing the glitches you reported me.
Here’s what’s been added / fixed for now:

Fixed:

• Improved animations

• Fixed sonic rolling after using a spring instead of walking
  Added :
  -slides

• Angel Island disappearing platforms

• Mushroom hill’s mushroom springs

• Sky Sanctuary lifts

• Better collapsing platforms

• Proper flame throwers ( instead of the ones used in the demo )

• Rotating platforms from Angel Island

• Pulleys

• Bridge logs animating when standing on them

• A proper Drop dash animation for the other sonics instead of the Roll animation