Well on the bast castle lvl even though im under something or any where the acid rain just keeps coming. any way to fix or remove the rain?
That sounds quite strange indeed... do you have the latest Jedi Academy patch? 1.0.1 ?
You could just keep spamming force protect too throughout the map.
You're not a mac user are you? I am, and in the older version (the one you get on the disk) this is a glitch, which is fixable by installing the patch.
Unfortunately, if you're using a PPC like I am, this patch will also give you other errors in SP (no subtitles, some animations don't work, and the jedi_randoms all looking the same) because the patch WAS intended to make the game able to run on intels, BUT this is preferable if it means that all the levels will run without you having to resort to cheats.
Try to find the mac 1.0.1d patch if you're on PPC.
JKA 1.01d Mac Patch - Hope that helps (if you haven't already found it).