i analyzed the file with objdump, and it said:
game.exe: file format elf64-x86-64
so it's actually a linux executable, and sure enough, it does run on linux. looks like you might have misconfigured your cross compiler?unfortunate circumstances aside, congrats on you first game! the ball spawns too low on the first level, so it's not always possible to beat it, and the momentum mechanic is buggy, the rest seems to be working fine.