MAME is trying to play it in Japan. Right-click on the game, Properties, Miscellaneous, Bios Choose US bios. The clone Dynamite Deka needs the Japanese bios; you could of tried that one.
I dont remember seeing it before, so... Is dolphin sex good? Do they sleep in the same bed? What names will they give the children? Will they practice income-splitting for tax porpoises?
First of all I A-bomb you, now I give you the answer. Press 5,6,7,8 to insert coins for each turtle. Then press Left ctrl/Alt or Right Ctrl/Shift or S/A or Numpad Ins/Del to start playing with a turtle Or, map the controls of all 4 turtles to the same keys, and you can control all 4 at once for more firepower!
Now I can read the Edge Emu thread, Thanks to demi for killing it so quickly. Looks like their forum software has changed since the last time I visited...
It's a very slow page and the download took forever at 447 bytes per sec. The whole thing including the changelog is all in Russian. R.Belmont says it works as intended. It was originally released on or near 19/dec/05, I found this thread about it.