But do you really need to move the cursor while the lasers are shooting? Anyway, you could just have two variables, a counter and a variable that contains which direction you're moving. If the counter > 0, don't read key presses, decrease the counter then immediately jump to whatever direction you need to be moving (possibly skipping over the part that sets the counter to 8 ). You could even have the direction variable by the value of the keypress so you can just load that into whatever variable you read keypresses into.

And at least in my code, updating the lasers each loop would just look like "call updateLasers"

Multiple level packs would be cool, too!

Update: Updated the game.
+New tiles: Portals, Gates, and Switches
+Better movement, as chickendude suggested.
+Fixed glitchy main menu and glitchy level passed menu
+Internal bugs and optimizations
http://www.ticalc.org/archives/files/fileinfo/464/46490.html

Just tested out the new version, the movement is much better in my opinion but still a bit off. Moving up and left seem fine, but moving right and down wait until the screen has finished scrolling to update the cursor's position. I think you should first move the cursor then scroll the screen, like with moving up/left. Though really i think keeping the cursor in the center of the screen at all times would look the best. The portals and the little flip things are pretty cool and make for some nice puzzles. Nice work

thank you for the motivation About curser movment, the wierd down/right curser movment is due to rounding errors. Basicly axe's division rutine always rounds down. Now, originally i had just a circular curser that stayed in the center of the screen, and movment was on a 2*2 grid. (it still is on a 2*2 grid but now 1 keypress scrolls you 2 pixels 4 times). having a circle in the midle of the screen made the selected tile a bit hard to see, so i replaced it with the system you saw in the original upload.
Right now i am planning to rewrite the engine file, becouse right now it is basicly a big mess hacked together in sections over several months. I will nead to know the new curser mechanics before i start, as they will be important. 

You could always attach it to your post for now.