First off: I love the presentation. The art looks great and is well polished.
Here are a few thoughts for improvement:
- The movement is fine - I like that when you jump you move farther away from Karen. Other than that, it doesn't really have much going for it. It reminds me a bit of Canabalt, but without any of the verticality or juicy animations. It really needs more than just jumping to keep it interesting.
- Some of the enemies, like the police car, move too quickly to avoid unless you're lucky. The sound it plays before it shows up is a good way of broadcasting its entry, but I never felt like I had enough time to avoid it, even with that. That might need to be tweaked.
- I've played this for a while now and I'm not really sure what the point is. Initially, I thought that it might be to get to an end, but it never really seemed to show up so I don't think it's that. I thought that it might be to get the best time, but there is no high-score storage, so I don't think it's that. Then I thought it might be if you ran Karen into enough things she'd die, or if you got to the little spaceship you'd win, but I was never able to meet either of those states no matter how well I played. Even if you don't explicitly state it in the game (which I think you should) the game itself should be clear about broadcasting the player goal.
Good work. Thank you for letting me play your game.