2D Platformer (tutorial Submission)

Proposed changes

1. I want to try an make an enemy that moves opposite to the player, and you have to use the environment to navigate around it

2. create a level with no enemies but multiple stage hazards that require  precise jumps and movement to finish the level.

3.  a boss level that requires several keys and check points to complete

4. (mostly a joke but I might try anyway) create a pick up with a rotating cow sprite that does nothing but moo on pick up