QoL Update for World 2

So this is just a small update to fix some small things that were wrong with the game. So I added arrows to the boost pads to showcase where they boost you. If they are empty to most likely go backwards because I couldn't figure out how to rotate them in a way that didn't look weird.  And while that happened I screwed up something and all boost pads converged to the same Z-axis so I had to fix that. See the image above of the old level 30. 

Also added the ability to go to world 1 level select from world 2 and world 2 level select from world 1 since it was a bit annoying having to clear level 15 to play world 2 levels.  And fixed a couple small glitches in the game that bugged me.

Changes

-Added arrows on boost pads 

-Changed death boost pads to red instead of green

-Added the ability to go to world 2 level select from world 1 level select and back

-Changed level 30 to something more enjoyable