Since the release of Forza Horizon 5, there have been showcase events all over the map, one such event being "The Buggy and The Beast" event. This event is located near the top of La Gran Caldera and can be unlocked after completing the Horizon Baja expedition.
In “The Buggy and the Beast” event, you'll need to race against 2 Hot Wheel Bone Shaker Monster trucks in a Ford #25 "Brocky" Ultra 4 Bronco RTP. You can always come to IGGM to buy FH 5 Cars. The race takes you from the mountains of Mexico to the stadium at the city center where you can find the elusive Bad Cactus. IGGM will introduce more details about Bad Cactus.
The Bad Cactus
Once you beat the AI, you can drive the same car that was in the race. If you want, you can complete 5 optional accolades, one of which is to find the hidden Bad Cactus, it's a red and orange colored Pinata, shaped like a cactus, but it's hard to find unless you know its exact location.
You need to drive for a while and you will see a wooden ramp. Next to the ramp is a set of shipment containers and a hidden cactus is located at the intersection of 2 shipment containers. Once you find it, you need to drive through it.
Of the 5 optional accolades, smashing the hidden Bad Cactus first is recommended, and you'll earn 50 accolade points for completing it.
If you fail to complete all 5 accolades within 3 minutes, you will have to repeat the process. If you need help with Forza Horizon 5 Credits during the game, you can always come to IGGM to buy them.