Thing-Thing 4

i dont know if anyone else is having this problem but when i get to the second bio lab in the very beginning my charactor jumps out of the map and walks under the map and i cant get out..

Another thing, the doors are based on timers, just jump around, and avoid the enemies long enough for the door to open

I have no doubt this is a great game.
The thing that ruins it for me is the fact that as soon as more than 10 enemies are on your screen, something as small as aiming causes massive lag for your character, while he gets pumped full of bullets from the enemies.
I have a fast computer, and so am not impressed at the amount of lag from a flash game.
Please do something to solve this, as I am finding it extremely difficult to progress at all.

Very first level, my character consistently disappears and I am unable to progress. This game is unplayable.

press tab for me it makes a yellow circle around 1 opponent. also elevators are easy, stand in the middle and let them land on top of u the take out your pipe (melee) and whack away. Hope that helps =D.