good game, but didn't like the alien generator room. How was someone supposed to figure out energy, gravity, on and off symbols and actually use them without any help? 4/5.
Wow, this is a great game.
Nobody used Speed? It's sooooooooo effective! Being able to reach cells before the others is far more effective than reproduction.
This game is too easy with bullet-speed. I beat the entire game without using it once. The boss was really hard without using it, though, so I'll give props to that.
lol, you guys must be slow at finding the differences. There IS a timer, it's just not shown, and completing a difference screen fast enough gives you a time bonus. Thus there's a timer.