MAMEWorld Forums - EmuChat - Re: Rolling Thunder, can't crouch and turn

> Thanks everyone for your help! I have to say you're all wrong though! You are
> definitely able to crouch and turn while remaining crouched on the actual cabinet. I
> played it to death in the 80s and our local retro arcade recently borrowed an
> original cabinet which I played last month!
> https://youtu.be/IqNzdiunf_U
> See the above video around 5:14.
> I practically mastered the game back in the day and I'm itching to play it on my home
> systems but this glitch makes it unplayable.
> Can anyone point me in the direction of a fix or will it be impossible to correct??
> Like I said it's possible on games like Robocop...

5:14 is just what you've already been told, player can turn when crouching because they're firing at the same time, and firing takes precedence over standing up in the game logic. It's very easy to replicate what is shown here in MAME.

This is 100% how the game is, it's hardcoded into the game code, it isn't something MAME can change.

It might be easier to pull off if you're using a joystick that physically can't send diagonal signals and is instead releasing both inputs as you move from down to left/right, but really, the game code simply can't process 2 directions at the same time. Any recent MAME version will also ignore diagonals on an 8-way stick for this game because it is known that the cabinet joysticks didn't send them.

The behavior of the game is actually more more widely documented than I first thought, because yes, at first it does feel awkward, but it's one of the earliest examples of this type of game, from a period where 4-way sticks were still more common.