On this page, you will find information on how to unlock and complete five secret stages in Crash Bandicoot 3: Warped. You can find them in the basement of Neo-Cor Systems that is inaccessible at first, and to access it, you will have to collect relics. This will unlock five new pressure plates in the basement, which activate portals, where two of them take you to additional parts of the Hang 'Em High and Future Frenzy.
How to unlock the basement with portals?
To gain access to the basement, you have to obtain, at least, 5 relics and, to remind you, they are awarded for completing time trials in the main stages (with the exception of boss fights). To start a time trial, after the stage starts, you have to approach the watch like the one shown in screenshot 1.
After you have reached the end portal, you will learn about your time and if it is sufficient to award you with a relic (an example prize has been shown in screenshot 2). Note - In the game,,. you can obtain one of three types of relics - sapphire, gold and platinum. You do not have to strive to obtain the best ones, because obtaining the sapphire ones is enough and it will also let you unlock secret stages.
Note - if you want to be able to access all five new portals after you enter the basement, try to obtain 25 relics (one from each of the stages in the game).
After you have obtained, at least, 5 relics, return to the main hub where you choose stages. Go into the center of the hub and stand on the orange platform shown in the above screenshot. Using the platform will allow you to access the basement.
How to use portals in the basement?
After you have used the abovementioned orange platform, you will warp into a secret room with portals shown in the above screenshot. There are five more pressure plates numbered 26-30. See below for detailed information about them.
Portal 26: Ski Crazed (requires 5 relics) - This one is a completely new stage, where you ride a jet ski. In comparison with previous missions of this type, there are many more mines and green crates here. To smash many of the regular crates, you have to be extremely precise/ move slowly to avoid hitting a bomb.
Portal 27: Hang 'Em High (requires 10 relics) - This portal warps you to a secret location in Hang 'Em High (stage 7 from the Arabic location). See the walkthrough for this mission.
Portal 28: Area 51? (requires 15 relics) - This one is a completely new stage, where you ride a bike. Of course, it is best to complete the race twice - first to smash all of the crates and then to overtake all of the pods and end the race in the first place (use green plates and watch out for the police cars coming from the opposite direction). This way, you will obtain 2 clear gems.
Portal 29: Future Frenzy (requires 20 relics) - This portal warps you to a secret part in Future Frenzy (stage 19 in the Egyptian location). See the walkthrough for this mission.
Portal 30: Rings of Power (requires 25 relics) - This is a completely new mission, where you pilot a biplane and fly through gates. You do not have to complete this mission more than once, but you have to be careful not to miss any of the gates, while shooting down the balloons. You can obtain two gems here - one for winning the race and another one for shooting down all the crates.