I've been watching plenty of play-throughs and let's-plays of Ayumi lately on youtube, and I am positively puzzled by how stingy people are with the 600 credits the mechs need to activate, yet they die in the areas of said security mechs on average 3-4 times (aka losing 2000 credits).
Do I need to make it more clear at the start of the game or something? I mean... How do you say that? "Invest money now, it will save you money later?"