Arrow Keys to Move and Jump. Includes Slope Collision, Wall Sliding, and Wall Jumping! Includes Support for Moving and Rotating Platforms! Includes Support for Semisolid (Jump Through) Platforms!
Thanks to @griffpatch for The Engine! Dynamically Calculates the Angle of the Slope That the Player is Standing on, and uses that to Change the Standing Costume. Dynamic Squash and Stretch Animation!