Nitro Crates are powerful, explosive crates, filled with nitroglycerin, seen in the Crash Bandicoot series. These explosive crates are extremely sensitive and should not be touched under most conditions (even while in the ground) unless supplied with invincibility. These are the most dangerous Crates on the Crash series. In Crash of the Titans for the DS, they appear with only an "N" on them. In the GBA version of Crash of the Titans, they have a yellow explosion. To destroy them at the end of a level, Crash must press the Nitro Switch Crate, which instantly blows up all Nitros in the level—however, anything near them would not explode while unseen until The Wrath of Cortex.