These are some tutorials for projects that only these people can teach you.

This is an extremely good scrolling project tutorial series:

Part 1:Get Scrolling

Part 2: Gravity

Part 3: Platform Detection

Part 4: Off Screen Sprites and Player Death

Part 5: Collectables

Part 6: Danger Sprites(Bug Fix)

Part 7: Exit Portal

Part 8: Vertical Scrolling

Part 9: Momentum

Part 10: Wall Jumping