Quoted from harryhoudini:I guess my question is, can I replace a micro switch with a leaf switch?
Sure can. A Microswitch is just a switch in a different form factor. Of course you'll have to add second isolated terminal if you want to mount the other end of the diode if using it in the switch matrix.
Pop bumpers on modern games are leaf switches connected to the switch matrix. Look at those for an idea. Some Stern/Sega and DE games mounted diodes under the playfield. Ran the wires to the diodes mounted to the playfield and then to switches or lamps connected to the matrix rather than the diode being right on the device.