okay, please open a terminal in the applications folder, then in the terminal type:
./LastManStanding64.app
or
open ./LastManStanding64.app
or
open LastManStanding64.app
or
LastManStanding64.app
then put the terminal output as a comment.
Coles-MacBook-Pro:~ colesampson$ ./LastManStanding64.app
-bash: ./LastManStanding64.app: No such file or directory
Coles-MacBook-Pro:~ colesampson$ open ./LastManStanding64.app
The file /Users/colesampson/LastManStanding64.app does not exist.
Coles-MacBook-Pro:~ colesampson$ open LastManStanding64.app
The file /Users/colesampson/LastManStanding64.app does not exist.
Coles-MacBook-Pro:~ colesampson$ LastManStanding64.app
-bash: LastManStanding64.app: command not found