I must say this game is actually very good and offers a decent challenge. The game has a very retro look & feel about it. The levels aren't that varied and navigating the maps can be annoying. I would have liked to see some more weapons, upgrades and equipment but as I said, it's a retro game and it works. Don't count on playing a game that takes a long time to complete, it took me 3 days to finish it. The is fun and offers a very solid challenge, even to veteran gamers like me. The action is great, the retro graphics look nice, the music is great but can get a little boring sometimes. All in all a great side scrolling game.