Probably one of the best game I've played on Newgrounds. I've been playing this for a while however now I've thought about writing my own review.
The soundtrack, to start with, is amazing! The Tracks used are perfect for the game. The wackiness of Danny Elfman's Score for Peewee's Play House in Level 1 showcases the insanity, the GoldenEye N64 track in Level 2 which is a level based on, well, Goldeneye, with Boris Grishenko in the background as well. Level 3 has a great soundtrack too, being used in Shaun Of The Dead and such, which is fitting for the zombie level. Level 4 using the Godzilla Soundtrack for a, well, Godzilla-Like beast was perfect. Level 5, much like Level 2, has music from the original source material, having Zombies Ate My Neighbours music. Level 6 was a great callback to the Black Box NES era, in a level in the style of Hogan's Alley. The use of the WarioWare Touched remix made it feel alot more energetic as well. Level 7 was a great homage to the music video to the song "Money" and its music was literally the best choice. Level 9 having MC Tom dropping a bomb was spectacular. Level 10, being the last level, has another wacky song (from Crash Bandicoot) and it thus fits in well with Level 1, the completely opposite side of the game. The levels as I listed above were all great and unique. My main issue is the reload mechanic. I'd say for the best fun, you should use the infinite ammo cheat, or you could even become the Evil Director!
One thing though is that Level 3 can be kind of a pain. It feels like sometimes when you shoot a zombie it doesn't register half the time. Other than that, a perfect game.
Overall, lots of fun and a great game for the Eddsworld brand.