This is actually a pretty nice game graphic wise, controls and all. The problem I'm having is I take out all the energy producers I can find around a construction (2) but the construction icon doesn't go away, but it stops smoking, so I don't know if there are more energy do dads to find or not.. then I waste all my torpedos firing at the construction because it should blow up or something... then I'm out of ammo, the game times out (which would be nice if I had a count down or something) and I stop playing because I'm frustrated. Maybe there should be an energy producer counter too.