Well, here's what I did and now I'm too tired to keep experimenting:
spuhler wrote:
1. Stood at beginning and waited for a spark sound.
2. Waited for the 2nd one because I moved too slow and I didn't want to make something explode by moving at the wrong time.
3. Went to the Floing.
4. Heard third spark, went to the Grow.
5. Heard fourth spark, went to the Flash.
6. Flashed the star from there. Heard shard sound. Saved game.
7. Went back later, used spy-eye and saw something quietly explode near 1,1. Probably flashed star since I could see it before when I did it wrong and now it was gone.
8. Restarted, tried again, after 1st spark, but this time used Floing on centre and went across top and down to Flash skipping Grow. Heard loud explosion upon approach of Flash.
Judging by the shard sound I suggest brig means ring, since certain sail-ships had bells of sorts.
I don't think I did brig right considering I heard that explosion moments after the ring. And I did the hints in order 3,2,1 so I'm not sure what else there is besides hearing the badness of explosions.