Spy vs Spy III: Arctic Antics

Released 1987

A second sequel to the original C-64 also designed by Michael Riedel and ported to a variety of other platforms. It moves the scene of the conflict to the frozen Arctic. According to Wikipedia: "The spies fight by throwing snowballs at each other and setting traps, which decreases their body heat bar. Tools include a saw to cut holes in the ice for the second player to fall into. Lost body heat can be restored by moving into a heated igloo."