I just booted up my AES in Jap mode, and it defaults to lifebar mode, which is nice that way I don't have to open up the dip menus
After playing a game in lifebar mode(and Japanese) I think I'm going to stick with this because there is just more details like lots of blood and even smoke that wasn't there before.
I did feel the game was much easier though in lifebar mode. Heck not just 'feel', this game is WAY easier to 1CC in lifebar mode, I won't beat around the bush. However I had more fun because the graphical detail was far improved due to booting up in Jap mode. I thought maybe there were even more monsters in Jap version also, and in particular stage 4 there's a Brontosaurus that is on LAND and it disintegrates when you kill it, showing only the skeleton left! That is not in the US mode of this game!
I'm getting closeer to figuring out the point structure for bonus stars. I still don't know how they build up their value, but I'm positive that the amount of hostages you are carrying is a modifier. You'll notice that the bonus stars are worth the least amount at the beginning of each stage when you have Zero hostages, then the value slowly builds throughout the stage. Here's what I think is the MAX value for stars according to how many hostages you are carrying:
-1 hostage = 15,000 points
-2 hostage = 30,000 points
-3 hostage = 60,000 points
-4 hostage = 75,000 points
-5 hostage = 90,000 points
It's hard to really keep track in the middle of a game when all the action is going though, but you'll see varying values for the bonus stars like 2,000, or 10,000, or 11,000 or 16,000 or 33,000 etc...I think you have to collect a certain 'minimum' number on each stage before max value is obtained. If anyone can figure out then tell us.
Also, anyone notice you generally get more points for destroying an object with the Plasma cannon(blue shot) than you do destroying the same object with the Machine Gun(red shot)? If you want to see what I mean, just the very first street lamp on stage 1 will give you 5,000 points when using the machine gun, but that same object gives you 6,000 points with the plasma cannon!?