There was a massive spoiler in the first level. When you're in the room where the lefts come on after 5 sec, you can see a red alien looking bug in the room to your left.
Wow. To easily beat the game, advance on the left side of the necromancy tree (skele, hex, revive, demon, swarm) Skeleton is all-around good for beginning of game, since you have two members, another one increases your power by 33%. hex is pretty good, revive you shouldn't need to use, summoned demon is just overpowered, with attacks that deal 50-90 damage, and finally swarm hits all enemies, for 30-50, and deals very strong poison damage afterwards (30-50)
How to beat 3-4. Build a circle of ~25 lasers around base. It seems that the lasers spawn little sperm bullets that infect the enemy. Also, each laser increases population limit by 1. With ~5 suppliers, you should have like 45 pop. limit. These 45 little guys will infect most of the enemies who will in turn infect other enemies. I beat that level with around 135 infected ships...
The game was just a mess at the end. All you were doing were watching the screen as your space station was completely destroyed as an attempt by the developer to compensate for your infectiousness ability. So you were just watching the game fold out to see if your infected ships could infect enough other ships to win.
GUYS- the going rate is $5 for 1600 energy. You can buy 3200 energy with $10!!! It's such an incredibly good deal! Oh and guess what! If you payed $10, you could spend 200 energy EVERY DAY with 100 energy left over at the end of the month!
I finally got the hard badge with 452,000 score. Here's how I did it. In most of the song "ready to love", there are continual ramps. It's actually very easy to continue going from on ramp to another. Do all the tricks (hold right or up or down or left) when you hit the ramps, then hit the rail to get ramp to rail and vice versa. When you have 10x multiplier, try to hit a pilot ramp. The hardest thing about pilot ramps is losing your orientation. Just stay focused and on the ramps. Don't worry about red notes. Don't jump on the rail twice in a row as your combo will reset and be careful when choosing the time to to jump to rail as it's possible the next possible ramp will be on the other side of the track and too far to reach, breaking your combo.
 "Outpost:Haven"){kind=icon}
 "Creeper World 2: Academy"){kind=icon}
 "Time World"){kind=icon}
 "Where is 2012?"){kind=icon}
 "Kingdom Rush"){kind=icon}
 "Sugar, Sugar, the Christmas special"){kind=icon}
 "Backyard Monsters (removed)"){kind=icon}
 "Legend of the Void"){kind=icon}
 "Amea"){kind=icon}
 "Obliterate Everything"){kind=icon}
 "One and One Story"){kind=icon}
 "Rebuild 2"){kind=icon}
 "Spiral Knights"){kind=icon}
 "Vector Stunt"){kind=icon}