Special Rules: This is a 2 Player Only Variation! No Continues Are Allowed! Both Players must start at the same time! The record is the sum of the 2 scores upon game completion. You may freely choose your Starting Level. No more than TEN (10) pteradactyls can be killed in a single wave. Videotaped submissions are a MUST for this title.

new condition (added May 29, 2011)
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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.

Due to these new conditions, all scores must be verified by a TGI referee watching the game in its entirety, or recorded in full.