Algodoo

You are a SuperTank trapped in an unstable tank facility, and you need to escape. You have lasers to help you cut through the thickest materials.
Controls: Arrow keys for directions(It also flies up and down). Press SHIFT for the forward laser and Z for the back laser. If the tank gets flipped, the controls get reversed.
If the game freezes or explodes, you have lost. Just press undo to restart.
(Please note that the facility is unstable, so it is hard to escape from. However, I have tested it, and it is possible.) Escape from the left for easy mode, and the right for hard.