Sifu

• When you restart an area you go back to the age you were when you started it, losing any progress made, which isn't as bad as it sounds.

• I recommend focusing on learning moves permanently, you do this by buying them 5 times before a reset, so just keep buying the same move until it's permanent.

• Skills that have a lower age limit can still be upgraded to permanent as long as you started it before going over the age limit.

• Items are also permanent, and often a key for a door in one level will be in a future one, so you'll have to back track and replay the levels to get all the endings and such.