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Get your NES, Famicom or whatever, hook up the 4-player adapter of your choice, bring in some booze and snacks and you're in for some great party time. Because this hack turns a classic two-player cooperative game into a real party game. Various options that come with this modification vastly increase replayability and each gameplay session is gonna be unique. Stronger enemies who spawn with a shield thus not going down as easily as in vanilla game? Enemies being able to use power-ups to their advantage? Or even enabling friendly fire for even more stuff and giggles? It's all up to you. And whatever options you've chosen - you're in for some great, fun time, regardless if you win or lose.

My only quip with this one are those power-ups spawning like crazy whenever a power-up carrying armored tank is hit, which creates chaotic situations, but other than that - this hack is something we should have had back in the day.

Honestly, I didn't think anyone would think of doing this... Create a hack for many players. IT appeared. And that's good. And there are nice additional options where you can customize the game the way you want.

Try it yourself and you won't be disappointed

Glad to see you can now enjoy the game with 3 or 4 players. I never thought it will exist, but now here it is! Great job!