Here you can read up on special alert variations!

Twitch

Bits

Bits is Twitch's on-site donation alternative. Here's a list of how many bits triggers what alert:

1+ - Triggers a basic audio and on screen alert.
100+ - Activates TTS (Text-To-Speech) to read out your message

300 - "Not bad for a dead guy, huh?" from Neon White
369 - "Hey there Zag man..." Hades meme
400 - "Welcome home, Nyaster" - Kita Arias
455 - "Huge Ass" - Jerma985
474 - Pikmin Death Clip

500+ - "Nyaa" - Kita Arias
1000+ - "PoPiPo" - Jerma985
2500+ - "NFL Theme" - Kita Arias

6969 - Japanese man screaming SEEEX

Gifted Subs

You can gift subscriptions to other viewers in chat. We have a few different alerts for bulk gifts:

5+ - "Malo Mart Theme" from The Legend of Zelda: Twilight Princess 
25+ - "Troubles Always Inbound" from PAYDAY 2
50+ - "Down With The Sickness" Intro by Kori (from my first ever karaoke stream)
75+ - "FFXIV Endwalker is Funky (Old Sharlyan)" by Alex Moukala (Source)
100+ - "DonAcDum" from PAYDAY 2