Here's another very simple game in the style of QBGorillas with a Christmas coat of paint. It's nothing fancy, runs in mode 7 and allows 4 players to throw snowballs in each other's face. Like Stunt Chopper, the code doesn't use anything fancy (no CALL ABSOLUTE, no OUT, no INP, no external files.) It is as barebone as can be.
The game can run on a potato, can be compiled with QB64 (and produce an EXE over 2 MB in size because why not) and could compile in FreeBASIC after some changes. It's that simple.