I think that this game is a great Arcade game for the GEN system. The gameplay is one of the best arcade type gameplay that I have ever seen. It has everything that an arcade game should have. The only bad thing that I could think of is probably the difficulty without the ability to save your progress. If you loss then its straight from the beginning. Even with this, I still think that the gameplay is awesome. The storyline is basically save your neighbors for the zombie and other creatures. The storyline itself is pretty dull but with the gameplay added with the storyline, the storyline become pretty exciting. The replay value really depends if you get into the game. If you like the game from the beginning then the game has a good replay value and the other way around. I, personally, like the game a lot so for me the game has a medium-high replay value. The graphics are absolutely great for an arcade game on your GEN system. The only major problem I had with the game was the sound effects which weren't what I had expected them to be. If you own an GEN system then I highly recommend this game to you. It is a great game to play when your are tired of all your other games.