You nostalgia you lose. This was an old game on lego.com until they removed it. Because they remove old games for some reason and they suck. But anyway, I always went to that site when I was maybe 10-12. And I remember I loved this game. So one day this game just pops up in my head, and I'm like "awesome, I have to play that again" but saw it was taken away from lego.com so I googled it. I love google. You better do that too... they will rule the world one day, you know.
Anyway, here's some stuff about how you play it (though the tutorial covers pretty much everything):
This strategy game is turn based and uses a grid map. There are some special grids where you place your units (or "upload programs" as the game says, because you are a hacker in the game and have to defeat the enemy programs to hack whatever you are hacking), basically your starting positions. You can upload any units but only one unit for every grid. All units (programs) have three attributes; move, max size and size. Move is basically how many grids a unit can move each turn. Max size is how big a unit can be. Because in this game all the units behave like the classic snake, they get a tail behind them when they move. When the max size is reached, the "oldest" part is removed when it moves. Size is simply the current size of a unit, it dies if the size falls to 0 or below. All units also have one or two commands (skills) (attack/nerf/buff/heal). Commands have four values: Size requirement, effect, range and... let's call it "recoil". Size requirement means that the attack can only be executed if the unit's size is at a certain number or above. This number is shown in parantheses after the attack name (eg DATASLAM(6)) (is usually 0 and not displayed). Effect is how the target is affected. The most common effect is "damage" (a normal attack), reducing your opponents size. Other skills reduces the opponents move attribute. There are also units that can boost other friendly units move, max size or size (move can not go above 10, but max size can be infinite). There is also a unit called Bit Man that has two very special skills that can delete or create a grid. Very useful for reaching "unreachable" areas, creating shortcuts, or keeping the enemy away. Range is how many grids away the attack can hit a target. Recoil is how much the size is reduced on the unit itself (is usually 0 and not displayed). The three latter are shown in the description window when you click the command button (it's name).
I think this covers pretty much... no wait! Watch out for horrible puns.
Oh and link!
http://jayisgames.com/games/spybot-the-nightfall-incident/And I think Firewall reminded me of it first but then I nah'd but later it just popped up and then I yea'd.