Best Ever!
Man, that game drew my attention better then anything else on newgrounds. I beat the boss easily with this strategy: ( Skip past if you don't want it to ruin it for yourself )
Shoot off lower gas shooting things first. Because those things kill your health while your getting attacked by the tentacles. After the two gas shooting things are dead, kill the rest of the tentacles. Shoot fast and you'll beat him quickly.
I did beat the game quickly, but didn't find any secrets to my surprise. =(
Hope #3 is the best to your abilities and is the best episode yet.
Good job on this episode.