Just like every game that involves speedrunning, oob tricks are almost always present. While we agree that they would defeat the purpose of a Level Leaderboard, for Full Game runs there is a category for them. So far, (somewhat) reliable strats for oob runs are known for the following maps: Metro City (Short), Grand Keys (Medium) and Red Planet (Medium/Long). Due to similarities in the map layout I suspect there is also one on Metro City (Medium), although I have yet to find it. The One for Red Planet was previously very inconsistent, steamuser AgentGinpu brought a reliable setup to my attention.

Let's get into the setup. The following clips show examples on how to get oob. Of these two, Grand Keys is certainly the easiest. Metro City requires a bit of experimenting to get somewhat consistently, so it's best used in the first track of Full Game runs. The Red Planet one is especially easy with a booster, however this will drain quie a bit of your car's health.

Now a few things have to be explained for this to be used to achieve a fast time (in the case of MC (Short) even a time that can't be beaten). In order to keep track of you're progress along a track there are many different methods. Most games use some kind of checkpoint system. Dethkarz however keeps your progress as a constantly increasing value between 0 and 1. A percentage of completion so to say. In the case of MC (Short) this looks as follows: As sometimes, during normal gameplay, small skips are unavoidable, the game has a certain threshold of how much of the track you are allowed to skip at a time. Luckily this is at exactly 50%. So while you are not allowed to drive from 0 -> 80-> 100/0, you can go from 0 -> 30 -> 80 -> 100 or 0 -> 50 -> 100 (This also means you can drive every map, where the layout allows it, in reverse. This is especially fun in arcade/championship races). In the case of MC (Short) you can simply drive in a big oval between the 50% threshold and the finish line.

Lastly there is one more point that has to be mentioned, which explains the unbeatable time of MC (Short). This simply is, that every lap at or below 20s will not complete. This means the fastest time theoretically possible is 20.01s. In the brief time I have invested in this on my current setup, I've managed to complete a 20.47s lap (I think my previous one was 20.17s). Once you have a ghost on the track, you can drive a lap that is too fast, and the slow down until you are just a bit ahead of the ghost. After enough attempts a pretty low time won't be hard. A full lap would look roughly like this: