The Revo Badge is made of a malleable metal and it will certainly deform if you remove it. The red arrow points to the locking pin, there are 2 on each side. Slide it to the center to remove it. The top cover will not just flip open, there is still catch. The trick to 'uncatch' it is to open up the Revo and then close it, it will be uncatched automatically.
Lets take a peek.
Here we can see the battery and the molex plug connecting the battery to the Revo . The battery is held in place by a piece of black tape, if you unplug the molex plug and remove the black tape it is very easy to remove the battery. It is not that easy to remove the top cover. First you will need a tweezers with a long reach, to reach inside and 'uncatch' the spring. This spring is what makes the Revo snap open and snap shut.