Quickest Immobilisations in Robot Wars

Battles in Robot Wars can sometimes last the full 3-5 minutes, but on some occasions, it is over after the first attack. After the first impact, the robot may either be damaged, or simply overturned and unable to self-right. A quick immobilisation does not necessarily signal the point in which the robot is officially eliminated, which is only marked when the House Robots intervene, Refbot's counter reaches ten or 'Cease' is called. However, there are several recognised cases of a very quick immobilisation. All occasions of an immobilisation being caused in five seconds or less are listed below.

Definition
A quick immobilisation is defined as an attack within the first five seconds of a battle which knocks out or otherwise immobilises the opponent.

The losing robot must:
 * Be clearly mobile before contact is made, with more than 50% of its drive working;
 * Be clearly immobile after contact, whether that be through damage sustained, or through being overturned.

Some fights, such as M.R. Speed Squared v Heavy Metal, are hard to determine when the robot became immobilised as M.R. Speed Squared remained on Heavy Metal's wedge between 0:04 and 0:13, meaning the immobilisation could have taken place anywhere between those seconds. Where the immobilisation is not immediately clear within five seconds, the battles are excluded.