Patch notes:
Added visual information in the pause menu that shows the collectable status for the current level.
Fixes:
-Fixed the coin UI showing in Nightmare levels
-Fixed a bug where you could play Nightmare without unlocking the level first
-Fixed the boss colliders in Return Null
-Fixed the extra coins that could not be collected in level Backdoor and System Spikes
-Fixes to the last level boss animations
-Fixes to the gravity switch in some levels
-Overall fixes and tweaks