We need to be able to go up through enemies. Constantly being thrown back at the ground because I jumped too quickly and hit a plane I was trying to land on is just annoying.
WE _need_ to be able to run slower and that's all there is to it. It's too easy to miss health and antidotes just because you couldn't slow down or go backwards to get them.
This game needs consistency. Clicking the exact same pixel 20 times produces 20 different results. I often have to try something several times without any change in order to gold the level.
@Darvious: Just like the people who produce television, those who create games need to make money from their work in order to continue working and in order to maintain their livelihood. Advertising is is valid method of achieving this.