The Dink Network

In the bosses in three amulets I did that, made the script jump back to the loop when hitting or talking. This however will cause another problem, if you have a wait command before the thing the loop is doing, for example moving the sprite, it will slow down if you spam talk key and if the wait is long enough it will stop as it will redo the wait everytime you interupt the script. If you have the wait after the thing the loop is going to do it will do it faster if you spam a key.

The easiest way to minimize this problem without using global variables and/or external scripts is to divide the wait into two parts and do one before and one after.

I would tell you to check out the scripts for the octopus and tree boss in Three Amulets but those scripts are just a mess and can't be followed by anyone. I'm surprised myself that they work XD

EDIT:
Keep the loops as short as possible and use other sprites on the screen for the loops when possible.