What are shortcuts?
There are three shortcuts that can be unlocked in Spelunky 2. These shortcuts allow you to permanently unlock later levels. In other words, you can skip the earlier levels every time rather than starting from the beginning.
The shortcuts in Spelunky 2 unlock three different levels from which to start each run. These are 1-4, 2-4, and 4-4. Given that there are only six core levels in Spelunky 2, not including side content, being able to skip all the way to world 4 can save a lot ...