Army Men Sarge's Heroes was free again, so I gave it a shot
I do agree with Brickman, it's very frustrating to get hit by enemies you can't see, especially in the later levels when the game gets really evil with the placement of snipers, bazookas and flamethrowers. Enemies can also spawn behind you and it's very slow to turn around. The game is quite generous with health pickups though so that helps a bit.
Despite having to replay certain levels over and over again, I still had fun with it. Might start the sequel tomorrow.