Special Rules: The above are the default internal settings for this title and need not be changed. This is a 2 Player Only Variation! Both Players must start at the same time! The record is the sum of the 2 scores upon game completion. You cannot kill more than ten  pteradactyls per wave or the score will bedisqualified on grounds of point-scrabbing.
new condition (added May 29, 2011)
In an effort to prevent a two-player game from becoming simply one player dying off quickly and the remaining player playing the game out to a very large score, the following rule has been added, and does not affect current scores on the scoreboard.
The two-player co-op game ends once one of the players has exhausted all lives. Once the "Game Over" message appears for that player, the remaining player may finish out the current wave. Once that wave has been completed, the remaining player must cease control of their player (hands-off control panel), and allow their remaining lives to be killed off. Points received during that final wave, as well as for the extra men being killed off, will be counted towards the final score: the sum of each of the player's scores.
--=**FOR POTENTIALLY FASTER VERIFICATION**=--
Members of the adjudicating user base who assist the community in MAME INP file analysis have requested that submitters consider the below community recommendations -
Submitters should use MAME version 183 or higher, preferably 183 or 220.
Submitters should name their inp and zip file in the following manner:
elf_bosco_588800_w183 zip file
so name the inp the same as the zip
xxx your initials
yyy rom name
zzz version of wolfmame