If you make a desktop shortcut for the original Army Men game, then type -windowmode into the target bar in properties. You'll gain access to the debug menu for the game at the top bar. Not sure if this is undiscovered or not, but I found it trying to play in windowed mode.

I've tried doing this for World at War & II, but they just shrunk the windows and made the games unplayable.

s im remember i have issues with first games in windowed. Probbly color problen on Win7, so Win10 must work... not sure.
Remind me, what you can do in debug mode?

Hadn't messed with it too much, but there's AI debugging, a cheats button that I don't think did anything. Some path tracing options, but they make the game lag horribly. Also a menu to play the in-game music.