I can somewhat confirm that Aladdin is Export only. This is how I try now to check regions for other SMS games:
- Region settings should reflect what the ROM has in it's headers ($4 SMS Export in this case for all ROMs I've found)
- Using event.oninputpoll (which I guess implemented differently for each core), the
5 polls must be avoided, as this should only appear when you used wrong settings
So even though many sites says Aladdin was released to other regions and ROM names has their flags, it seems to be inaccurate.
edit: some examples of the bad settings:
ONLY PAL! (5 polls (instead of 1-3) or 3 polls (instead of 1-2) when used in NTSC)
Aladdin, Alien 3, Air Rescue
CAN BE NTSC (1st level gameplay has same polling rate albeit being Europe)
Alien Storm, Tom and Jerry
edit: Some new informations:
- There are SMS games with only PAL while GG with NTSC, example: Ariel, Asterix and the Great Mision
- There are GG games with only PAL (but there is no display type change for GG so it's 60fps), example: Asterix and the Secret Mission
- Bram Stroker's Dracula SMS E (PAL) but GG has both regions
- I couldn't find anywhere about Game Gear being region dependent, yet I found many different regions for most of the Game Gear games
edit3: TASes published using the erroneous setting (NTSC for a Europe ROM resulting in fluctuating input poll which makes input denied):
[2920] SMS Danan: The Jungle Fighter by Aqfaq in 07:18.15 - SMS Export, only European (with Brazil) ROM found, has input denied issue when using NTSC
edit4: So it seems that if a game has a constant half rate gameplay, there won't be input denied issue. Some movies that uses European ROM but plays on 60hz listed below
[2271] SMS Astérix by Johnnypoiro in 26:20.57 - SMS Export, only European (with Brazil) ROM found, 1.0, however there is no input deny in 1st level because every even frame is lag frame
[2834] SMS Batman Returns by mamuuuut in 01:38.24 - SMS Export, only European (with Brazil) ROM found, however there is no input deny in 1st level because every even frame is lag frame
[2985] SMS Cheese Cat-Astrophe Starring Speedy Gonzales by Mephistus & Really_Tall in 13:07.26 - SMS Export, only European (with Brazil) ROM found, however there is no input deny in 1st level because every even frame is lag frame
edit5: TwoMbit tests:
- from readme: "- there are a few pal games which have glitches playing with us/jp region selected. These are no emulation bugs. It behaves the same at a real system."
- also note TwoMbit has option to select between SMS1 and SMS2 unit
- there's 3 region settings: Japan, Europe, USA (and Auto)
- since there's no frame stepping, I couldn't test the input denied issue
- Game Gear games seems to be always 60hz
final edit:
According to many sites of sega gamers, these are my conclusions:
- GG is always 60hz
- SMS1 and SMS2 only differs from the VDP and one minimal change
- Brazilian SMS is supposed to be PAL-M, 60hz, however some people commented on having 50hz... This will be a task for someone to track down. This might be an inaccurate fact!
- There are carts that don't fit into other region's unit
- There are PAL games that has glitches when playing in a NTSC system Some of the known issues from internet of PAL on NTSC (PM me for links or more entries):
Addams Family, The
Alien 3
Back to the Future Part II
Back to the Future Part III
Battlemaniacs
Bart vs. the Space Mutants
Bram Stoker's Dracula
California Games II
Cosmic Spacehead
Desert Strike
Excellent Dizzy Collection, The
Fantastic Dizzy
Home Alone
Micro Machines
Operation Wolf
Predator 2
Quest for the Shaven Yak
RoboCop 3
Sensible Soccer
Shadow Dancer - The Secret of Shinobi
Shadow of the Beast
Sonic Blast
Sonic The Hedgehog 2
Space Harrier (some versions)
Street Fighter II
Super Smash TV
Taito Chase H.Q.
The Newzealand Story
The Simpsons Bart vs the Space Mutants
Xenon 2
Now I can post my question in the Ask a Judge thread regarding 60hz for PAL games on SMS.