I really like this game. Thank you for removing that locker, I died a few times trying to enter it when it was there before. I just put it on a flash cart and tried it with a GBC, GBA, and a Chromatic. It ran great on all three!
I found a weird bug. I had this happen in a couple of places, but I found a way to consistently replicate it. After passing the command room and going down the ladder, continue down the next ladder, wait in front of the ladder for the xenomorph, at the last moment go back up the ladder, when you go back down the ladder you won't hear or see the xenomorph but you will die regardless. I had this happen in the previous version too. This is using the 1.2 version.