Tomb Gator for NES by Christopher Addolorato got an update.

Okay! V5 is done!
This includes:
Boss battle 1
new Alien death animation
new extra life gaining system (100 tokens=1 extra life.)
The boss music is only temporary. I’m planning on having a 8 bit baseball organ version of “Take me Out to the Ballgame” for the boss fight and “Charge!” for the boss intro screen.