The shooting aspect is already worth at least a 4, due to originality, coin collection and the fact that you can completely choose your upgrades and the position of your guns. Then, the upgrade part makes it a 5 :D
Yes, when Thursday comes we will pwn the world with our combined intellect. Blue powerups, red powerups, cheesy powerups, and more in our next edition: "insert name fitting for an amazing ping-pong game here"
Heh. Me and zr are taking a break for a while. To work on some other games, develop our interests, etc. Don't worry, the 11th or 12th game will have some very epic changes.