Full video walkthrough on how to complete the Laguna Blast Crash Bomb Challenge with 5 gears:

Crash Bomb points are awarded based on how quickly you complete the course and how much damage you do at the end. In Laguna Blast a glitch means most of the damage doesn't register and can usually only get maximum damage points of 800-850 (only on very rare occasions will you get points above this range). As such you can only really control how quickly you complete the course. This guide will show you how to do that.

The goal is to get +18200 for the completion time and +800 damage dealt. Damage dealt is glitched so you must optimise your route to go as fast as possible in order to achieve 5 gears (18200 completion time is almost always good enough). Follow the guide for an optimised route and tips on where to make up time.

START
The timer starts as soon as you enter the vehicle. It's important to hold accelerate as you enter the vehicle since your points total will start to count down straight away.

EARLY STAGE
Follow the route in the screenshots. Drive in a straight line and cur corners where possible.

DENSE AREA
Avoid obstacles & traffic as any collisions will cost you enough time to fail the challenge.

MIDSECTION
Also avoid NPCs and lamp posts at the side of the road while hugging the curbs.

FIRST JUMP APPROACH
Aim left of the tower for the first ramp and go off between the two rebel trucks (they do not always spawn so be aware of your positioning). Ramping in the air suspends the points countdown - and every point counts.

BEACH JUMP APPROACH
Steer slightly to the right on landing and try to avoid the bush. If you steer to far you may lose momentum which is something you want to avoid.

BEACH JUMP
Another big jump onto the beach will suspend the countdown again. Ideally you want to land with around 19300 points and be travelling about 100kph to give yourself the best chance of making the finish on time. Do not quit if you are a little short of this estimate as you may get lucky on the explosion at the end.

WATER HAZARD
Skirt around the water and try to stay right so you can get the best angle to aim at the big rock (outlined in red on the screenshot) which you want to ramp off with your your right wheels.

ROCK RAMP
Dive out of the vehicle just before it ramps off the rock and hopefully you aimed well enough for it to hit the target.

CONCLUSION
If you went fast enough and got over 18,200 'completion time', then you only need 800 'damage dealt' to get 5 gears.

Good luck!