Those complaining about level gap are actually wrong. The game does a nice job of making it possible to play against people of a higher level. Sure, you'll lose a lot of the time, but that's not because of the weapons, it's because they've got skill. I personally won about 30% of my games against people level 10+ at level 2-4.
My tip to nerdook: take more time on your games. Quick production is great, but the gameplay in pretty much every one of the games since Zombies Took My Daughter has been very repetative and mediocre. Spend more time putting the "fun" into your games. The art style is neat, but the gameplay is practically nothing. So far, your last three games have seemed like they're just excuses for a silly ending song. There's my two cents.
It does seem stolen... but, that's not for certain. Don't downvote a game because you think it's stolen. If you suspect it, then just wait until you can confirm it before rating the game. I'd feel bad for this guy if the game turned out to not be stolen, and it ended up as a 2/5 just because people thought it was stolen.
Here's a better way to take the last level. Build a Dual MG in the top spot, and a Heavy Cannon in the rightmost spot. Put a health buffer in the bottom left, and damage buffers in the remaining spaces. Upgrade Damage once on the MG, then the rest into fire rate. Upgrade only health on the Heavy Cannon. Upgrade only buff strength on all the buffers. In the end, your MG will be doing 4s, and your heavy cannon will have about 500 health to soak up damage. I beat the entire level with no problem. Also, aim at the bosses propeller, you get double damage hitting there.
Decent idea, poor execution. Oxygen should respawn every time. When you die, you have to get the chests again, but oxygen is gone? furthermore, the upgrade prices are wrong. It takes more money than it shows.
The last power orb is so you will be able to access all planets no matter what order you chose. So that you can't get stuck because you went to a planet without a power orb, and the orb you need to get to the next one is on that one.
The kongregate rules state that uploaded games must have interaction. I understand that it's funny in all (I watched for 5 minutes), but it's still a violation of the rules. And also, the fact that this is on the weeklys really annoys me. It's like an insult to all the serious developers out there that some guy putting a random viral video up gets such a good reception, with absolutely no effort put in. Sorry, I like it, but it doesn't belong here. 1/5 + flag.