Making Levels With the Super Mario World Method: Skill Themes, Part 2

https://gamedevelopment.tutsplus.com/articles/making-levels-with-the-super-mario-world-method-skill-themes-part-2--cms-26110

Super Mario World CCST level design skills inversions difficulty

A look at momentum and inercepts in Super Mario World, and level design tool: inversions, such as having a power-up will block a player. Mixing these with intercepts creates different scenarios that require different levels of skill to pass.