LFS sends an IS_AXO everytime an object is hit. Sadly, no information about the object type is provided, so it is possible, but only if the layout is made entirely out of cones and no other solid objects (chalk and restricted areas / route checkers are okay).
You could use solid objects as the barriers, an AXO isn't sent when you hit one of those. The problem with doing a pacman style game is that the cones will respawn after you hit them, so you'd have to maybe have some sort of time limit?