Donkey Kong 500

Thanks for the infos. I tried it in different ways (write this in an extra-line of the startup-sequence, write it in the line in which "Prompt "Selection:>" is written, etc, but it don't work in all the ways i tried. How exactly must it be written there, in an extra line or behind some other stuff?

Maybe it would make sense, to make the japanese level-order a selectable point in this menue, that comes, when the user load the game (this menue, in which different things can be chosen, like manual, infos, cheat-keys and so on). Wouldn't that make sense? The Japanese level-order is the better one anyway.

Two other things I noticed while playing. (1) The floppy motor doesn't shut off after the game has loaded, i think this should be changed (better for the hardware).

(2) In Level 2 (the one with the conveyor-belts), the game runs a bit jerkily, especially when you are on the second plane, at least on my A500. Sometimes entire animations for the Mario character are missing then and he seems to disappear shortly and then reappears. The other three levels run perfectly fine on the Amiga500. I have a suspicion, as to what the problem in Level 2 might be. If Mario is on the conveyor-belts and runs in the direction, the belt is also running in that moment, he speeds up considerably and then the player can notice things like frameskipping alot more, which could be the problem here, on A500 machines (if the game runs in a 25FPS mode there)? Mario then runs jerkily and seems to disappear for a short moment and then is suddenly two steps ahead, when he reappears. Perhaps this could be fixed, by not running the game with frameskipping, in such moment, when the Mario sprite is on the conveyor-belts in the second level? I don't know, how much slower the gameplay then will be on A500 machines, because if that's too much, then this suggestion obviously doesn't make sense. But if it's not much, maybe it could make an improvement in this "disappearing reappearing" problem? I haven't tried the game on an A1200 yet, but I assume, this problem doesn't exist there, when the Mario sprite is on the conveyor belts.

I 've downloaded the ADF again, but it is still the US Version. Is there a key to change mode?

On the Japanese version, a Barrel cannot drop down a ladder while Jumpman is on it (upper third).

The change form SUBQ.B #4,D0 to SUB.B #$10,D0 make this possible. You can compare the MAME ROMS to check it.

// original Z80 assembly code of the subroutine US Ver.

2178 3A4863 LD A,(#6348) ; get status of the oil can fire

217B A7 AND A ; is the fire lit ?

217C CAB221 JP Z,#21B2 ; no, always take ladders before oil is lit

217F 3A0562 LD A,(#6205) ; else load A with Mario's Y position + 5

2182 D604 SUB #04 ; subtract 4

2184 BA CP D ; is the barrel already below or same level as Mario ?

2185 D8 RET C ; yes, return without taking ladder

Source