NBS stands for "No Balloonist Skip" - Balloonist Skip (and Fairy Storage) shortens the Spyro 1 Any% category to just Artisans, the Peace Keepers homeworld and some of Gnorc Gnexus.
NG+ stands for "New Game+" - this is widely known in speedrunning as essentially beating the game again with more abilities unlocked. In SRT, you can acquire a permanent superflame powerup in Dragon Shores after beating Spyro 2 100%, or even utilise something known as "Level Storage".
NLS stands for "No Level Storage" - this ability can be acquired in Spyro 2, though it is quite tricky at first. LS gives you the abilities you have in S2 Speedways, so you can use superflight/supercharge wherever you go. As this is very different from the vanilla Spyro experience, LS is only allowed in certain categories, usually NG+.
NMS stands for "No Major Skips" - the theme here is if there is something like Balloonist Skip or Level Storage available, NMS categories will not allow them.
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After some discussions with the mod team, we feel the time has come to officially set a ruling on IGT manipulation for Console runs.
As you probably know the console version of SRT is timed using IGT. This is due to the complication of setting up a load remover for console. IGT has its flaws, but i