finished it really great and fun game I like how instead of fixing the jump button to make it not able to fly you instead use it as a feature really good idea man and I like how the map is big and lots of stuff to discover good job man
I can't find one more cube I suggest you add an index and some hints as some people might have trouble finding all of them and I also suggest for the loooooong holes to make an elevator as it is VERY annoying to climb all the way to the surface it can affect your game positively, please add these items into ur game as it is very helpful .