Everything in this game has an explanation on how it happens- The Colliseum is there so monsters can watch Spiral Knights fight, Crystal Energy is a rare formation caused by condensing mist, Mist itself being produced by the core. The only thing I know of not being explained is the species of the Spiral Knights (By the way, I still want to know this). But what is the explanation behind the Emergency Revive?
Does the lift just inject you with energy allowing you to revive yourself? Why don't the knights figure out why it does this and harness it for infinite free revives?
Does your Battle Sprite revive you? 1. Why doesn't it do this every time you die, and 2. Why does it happen to people without them?
Magic? What magic? What magical element brings zombies and the Kat tribe back to life infinitely, but only brings the Knights back once?
Is it your armor? Does your armor decide to bring you back once per level? Why is it designed to only bring you back once? Who designed all this armor anyways?
Is it leftover unstable energy from the Sparks of Life? So each Spark of Life is worth two, and we should also be harnessing this power for some purpose?
Do your enemies have mercy on you and revive you just so you have another chance at killing them? No, thats just stupid.
Is it Mist Energy? No, because Mist is always being produced by the core, and we can only revive once per level.
Is it some technology that the knights have that prevent them from wasting resources? Why cant we do this infinitely? If we can hold undefined units of crystal energy, why cant we hold more than one emergency revive?
Sorry for nitpicking, but I feel this needs to be explained. DX
Well obviously, the energy used to revive you is stored in your mist tank, which now has no other use. The tank only has the capacity to revive you once before recharging during elevator trips.