Here are the classes, structs, unions and interfaces with brief descriptions:

AnimationLogger	Logs the animation state to the console.
BackAndForthPlatform	A platform that moves left and right. Note that it returns true for parent on stand.
Brick	A simple mario like brick, showing how you can respond to hitting something with characters head.
CameraFollow
CharacterControllerEventDelegate	Character controller animation event delegate.
ClimbDetails	Climb details.
Collectable	A simple collectable item, it plays a particle effect when collected and invokes the Collect method on the HitBox class. Requries a HitBox on the character :)
CrouchDetails	Crouch details. Control what happens when you press down.
DecayingPlatform	Platform that will fall if you stand on it for more than the decay time. The timer resets each time to you leave the paltform so if you keep jumping you can stay on the platform.
DirectionChecker	This script handles characters that don't have symmetrical colliders by flipping the colliders based on the direction the character it facing. It is important that you use the same method of checking direciton here that you use in your animator
EnemyAIController	An enemy AI which tries to follow the player. Its built using the hack until it works philosophy of AI design, so the code might be a little hard to follow. Currently it doesn't cater for sense distance nor do path finding. Specifically it doesn't plan a route to a player it just tries to get on to higher platforms if the player is higher and lower platforms if the player is lower
EnemyBounceAndFall	This enemy uses only the MoveInX and MoveInY methods of the character controller. It behaves much like Super Mario enemies in that it walks in a given direction unless it runs in to something in which case it turns around
EnemyBounceAndFallInput	This is the 'AI' for the bounce and fall controller. Basically it bounces off things. It also has a sense distance and the enemy wont activate until within this distance.
EnemyPatrol
FallDamage	Add this to a character to enable the character to take fall damage.
FallingPlatform	Platform that falls after you touch it. The fall is delayed by the value of fallDelay.
Float	Make the character float gently downwards instead of falling if they hold jump. COuld be changed to use any key (i.e. Input.GetKeyDown() or to not reuqire a key at all (for example as a special ability that is turned on or off by the presence or absence of an item).
HeroAnimator
HitBox	A hit box takes damage and passes it to a health component for processing. This allows you to easily move the damage points or alternatively attach them to transforms
IEnemy	Interface used to determine that an object is an enemy.
JumpDetails	Jump details. Note that jumps are also affected by the Physics.gravity setting.
JumpOnHead	Attach a trigger for the head of the enemy and then add this script to it to kill the enemy when you jump on him.
KillBox	Respawn the player when they touch this. Its a pretty simple implementation. In a real game you probably wont to invoke a death method which does all the things required for death (lives, scores, effects, sounds, etc)
Ladder	Base class for ladder colliders. Extend this to create your own ladder functions.
LadderCollider	Ladder collider. Attach this to every collider used in a ladder. This is like a rung of the ladder.
LadderControl	The main control class for a ladder. Put this at the root of your ladder. Can also be used for vine like climbable or extended for other climbable behaviour.
LadderWizardEditorWindow
LedgeDetails	Ledge details. Control what happens when you hang off a ledge.
ModelAnimator
MovementDetails	Movement details.
PassthroughPlatform
Platform	Base class for all paltforms.
Projectile	A very simple projectile that moves across the screen and triggers the damage method on a HitBox if it collides with one.
RaycastCharacterController	Raycast character controller a controller for 2D platform games.
RaycastCharacterControllerEditor
RaycastCharacterInput	Abstract class for character input, extend this to provide your own input.
RaycastCollider	Raycast collider. The main collision object.
RespawnPoint	Respawn point, platform implementation.
Rope	Base class for rope colliders. Extend this to create your own rope functions.
RopeCollider	Rope platform. Attach this to every collider used in a rope. Note that rope colliders must be the child of a rigidbody.
RopeControl
SetUpPhysics	Set gravity to a higher value as it looks and feel better. Make sure the ingore raycasts layer doesn't collide with any of the character layers the defaul layer or itself
Shooter	Extremely simple "gun". Purely here to demonstrate the hit box/damge features.
SimpleCharacterInput	A simple character input. Arrows to move, left SHIFT to run, SPACE to jump.
SimpleHealth	This is a simple script for tracking characters health. It provides a Damage method and a
SimpleHealthBarUI	A very simple health bar UI. You could extend to create your own health bar if you wnt to easily integrate with the other sample scripts.
SlidingPlatform	A platform that adds horizontal velocity to the character. For example a convery belt.
SlipperyPlatform	A platform which reduces drag, making the character slide around (i.e ice). Could also be used to increase drag (sticky mud or long grass).
SlopeDetails	Slope details.
SpringboardPlatform	Very simple bouncy springboard platform. Boucnes a character with a fix force each time they stand on it.
StandardMobileInput	A simple mobile input controller which uses the Unity Standard Assets (Mobile) Joystick.
TopStepPlatform	Top step platform, this script should be attached to the top step of a ladder.
TouchController	A touch input for the 2D Platform controller
TouchControllerButton
UnBreakableBrick	A simple mario like brick, showing how you can respond to hitting something with characters head. This brick wont break but will instead "bobble" when you hit it. It can optionally spawn an object like a coin
UpAndDownPlatform	A platform that moves up and down. Note that it returns true for parent on stand.
WallDetails	Wall details. Controls wall jump and wall slide.