A DLC (downloadable content) level for the Crash Bandicoot section of this trilogy called "Stormy Ascent" was released a few weeks after this trilogy was released (note: this level was based upon a certain level (called "Stormy Ascent" also) was deleted from the game this section was based upon (specifically after it was considered too difficult (even to the point of developers of the game not being able to finish it toward its end)).
Certain players of this trilogy had noted that the levels in all of its sections are harder (or tougher) than the ones in the games they were based upon (Crash Bandicoot, Crash Bandicoot 2: Cortex Strikes Back, and Crash Bandicoot: Warped).
Voice actors other than ones for the original Crash Bandicoot game, the original Crash Bandicoot 2: Cortex Strikes Back, and the original Crash Bandicoot: Warped game were used for the sections of this trilogy based upon them.
A new level named Future Tense was released in 2018 for the Crash Bandicoot: Warped section of the N-Sane Trilogy, downloadable from Playstation Network (and now Xbox and Nintendo)
Unlike the original Crash Bandicoot game in which breaking every box in certain levels without dying was required in order to receive clear gems, the N. Sane Trilogy version of it changes this so that a player of it could still die and still get a clear gem (in order to make things easier), even though staying alive was made a requirement for receiving colored gems whereas the original version of it had no such requirement