Please read the following requirements before sending
in your Highscores and Replay files:
[+] please ensure you REMOVE the NVRAM
folder from the main MacMAME folder when recording your
game. NVRAM holds information specific to the game and it's
configuration (highscore settings etc), which screws up
playback on other machines.
[+] Please include your full name, hometown and country.
[+] Submissions with partial names or alias' will not be
[+] If you have questions about settings for a particular
game please email me by clicking on the address in the footer.
(Not all games have official settings).
[+] Screen shots showing the final score AND screen number
are greatly preferred. INP (replay) files are regarded as
the highest level of proof, especially if you sign your
initials at the end of your game. In the case of #1 ranked
scores, an INP file is required. Generally for a much lower
ranked score a screenshot is sufficient, however a score
proven with only a screenshot may not always be accepted,
and further proof may be required.
[+] In the case of the inp file not playing back correctly,
the score will not be accepted. It is the responsibility
player to provide a working INP file
[+] Note that for most Williams games you can keep hitting
'6' to advance to the difficulty settings screen for the
earlier versions of MacMAME. In later versions it is the
F2 key. Defender is a special case: you must hit F1+F2 at
the same time, then scroll through the options with the
F2 key and adjust the option with the 7 key (unless the
defaults have been changed of course).
[+] The following games must be proven by INP file:
[+] The player can then send in the file for verification
to the address in the footer via email (just click on the
footer image). Please compress these files in either .zip
or .sit format. Always document which version of MAME you
used to generate the INP file, e.g. operating system, sound
on/off, samples yes/no, mame version. In general it is recommended
to NOT USE SAMPLES as this makes the timing
of the INP file machine-specific, i.e. the inp file will
only playback properly
on your own machine!
[+] Avoid using old versions as some do not read the dip
switches correctly. Generally, it's better to use the newest
version of MacMAME possible.
[+] Be sure to use the proper romset where different versions
exist. Using the newest version of roms provides the best
gameplay and the least bugs. In general it is best to use
the new version and avoid the old version.
[+] The game Scramble is a special case. In different
versions of MacMAME different romset names were used to
mean "scramble". Since the Stern version of Scramble
is harder than the Komani version, only scores achieved
on the Stern version are accepted. Note that at the start
of the game the copyright message (c) Stern 1981 should
[+] Earlier versions of MacMAME did not handle the dip
switch settings correctly in Missile Command. Always use
the newest version of MacMAME. Using a FINAL version of
MacMAME, rather than a beta version is greatly
[+] In the case of games that roll fairly easily, e.g.
Space Invaders, Galaga or Centipede we need multiple screen
shots depicting each roll over, or better yet, the INP file.
It is possible to use the 2nd player on Galaga to show scores
over 1 million, and even 10 million!
[+] Tricks which violate the "spirit of the game"
are greatly discouraged since they make the game too easy
to play for
extended periods of time. The game philosophy of Invader
is to make skill more important than endurance.
Some examples of games which have back doors or tricks include:
- Using a speed up cheat on any game
- Using the rack advance feature on any game
- Making the bugs on Galaga stop firing
- Setting extra men to 255
- Using turbo buttons on games like Track N Field, Hyper
(however using joysticks/tracballs without turbo buttons
- Using power-up tricks in Bubble Bobble
- Using programmable joysticks or other controllers
- Using slo-mo type programs to slow the game down
- Using a slow computer to slow the game down
[+] In some games the American and Japanese versions are
significantly different, e.g. Black Tiger (American version)
and Black Dragon (Japanese version). Black Tiger is actually
a cut down version of Black Dragon with less screens and
therefore scores lower. Another example of this is Amidar,
which has different dip switch settings for the American
and Japanese versions. Where scoring and/or game play differences
exist in American and Japanese games they will be treated
[+] "Scabbing" for points is generally discouraged.
Scabbing is tolerated in Williams games with limited men,
and also games which have set endings beyond which you can
not continue. In these cases it is the only way to increase
[+] Due to the step-ladder bonus feature of games like
Tempest and Millipede, all games are required to start on
the first screen. Once a player has started on the first
screen, warping to a higher screen is permissible.
[+] Continuing your game with an additional credit is not
[+] Playing a game at a low frame rate, e.g. less than
90% also violates the "spirit of the game". Try
to avoid playing games at low frame rates by using the frame
skip feature in MacMAME. If the game is too slow for your
machine, DO NOT use Auto Frame Skip, this can screw up playback
- don't try and play the game!
[+] It is permissible to use a mouse or a trackball.
[+] As a general rule, the more evidence you can provide
to document your scores, the more likely it will be considered
for the Invader Highscore tables - INP files in particular
offer the greatest level of verfication!
[+] always check the Replay file yourself to ensure
it is working properly. Any non-working Replays sent to
us will be deemed void - if you can't view it, neither can
[+] Game settings found in the Misc Tab of the
MacMAME front-end = turn the following OFF...
[enable automatic frame skipping]
Recording your Replay (INP) File
Before playing your game, click on the MISC tab
and choose 'save replay'. Choose the destination
for the saved file, and hit SAVE.
Ensure you remove your NVRAM folder from the main MacMAME
Folder - you can always place it on your desktop for safekeeping.
Make sure you have your game selected correctly from the
game menu on the left and hit PLAY. Your game will
now automatically record. Once your game has finished, take
a screenshot (by hitting F12 in OS9 or COMMAND-G in OSX),
which will save a '.png' file in the SCREENSHOTS
folder within the main MacMAME folder (in OS9 (OSX
version will ask you which location you would like to save
the screenshot)). In the newer versions of MacMAME, if you
save more than one screenshot, it will be saved as sharrier0001.png,
sharrier0002.png etc - please make sure you send in
the corresponding one to the replay file!
Send both the SCREENSHOT and the REPLAY file
with a readme.txt file stating game/ROMset info as stated
above in the main rules section to the Invader Team via
e-mail - click on footer directly below.