Oh, one other thing that annoyed me to no end: respawning. For no apparent reason, you respawn at half health. With the initial characters, that equates to 1 hit more or less.
Well, now that I've "beaten" the game. It was pretty good, nice fun in multiplayer. It'd be nice if the players weren't so completely de-synced though. Also, two things: on the giant ship boss, if you die in the second half, you spawn under the ship and can't climb back up. The other thing is the den is significantly easier than it's supposed to be if you hang out in the bottom right corner for the first half. Still good fun, though.
Since so many people have been having trouble, let me explain the shield room. You need to fill in the missing color for each location. For instance, the say the top left color on the first three is green, blue, and red. The top left color on the final one will then be dark green. Do this for all 4 parts (diagonals are the same).
More than likely, the game is lagging on your computer, which always causes input to get messed up. Oh, any you got downvoted for repeated spam and stupidity.
Although I don't completely agree with hoople, the fact that you can't get a gold star if any civilians die AND YOU CAN'T RESTART without paying money is completely terrible. Especially since you don't have to care if the VIP dies.