TWCC is more than just the Taiwan/Chinese version of Chain Chronicle where everything is in Chinese instead of Japanese. There are quite a few noteworthy differences from the Japanese original JPCC.
Pulls are cheaper
Each pull at a gacha costs 5 prysmas in JPCC; in TWCC it costs 4. However, if you also play JPCC you'll notice we get a lot less resources for free. Something's gotta give I guess.
Bow-toting Archers shoot faster
They by default shoot one arrow every 2 seconds. In TWCC they shoot one every 1.5 seconds. Gunners, snipers, magicians don't have this benefit though.
Flying Pirika
TWCC has an additional section hidden inside an icon that looks like a flying Pirika in the overworld screen, where some TWCC stuff that don't fit in the system otherwise go. This is what you get once you tap it. (You may need to scroll down a little bit.)
Any big banners you scroll past link to pages for special event bonuses where available. When such bonuses are available, I'll say in a post like "pick up from a banner inside flying Pirika." It means come here.
Lindsey is a big one. She links to a page where you can get second daily login bonus by tapping a big purple button. It is random and can be anything from gold to revival fruit to prysmas and premium tickets. The bonus goes to your gift box. Once you get it, the big purple button will do nothing until the next day. Rule of thumb: Go there after you get your standard daily login bonus.
Yoshitsugu is an even bigger one. Tap him, then Fatima, to get at another of TWCC's hidden treats: A full set of rewards for reaching a certain player rank, starting with rank 5, then every 5 until 100. As you reach the rank the button will light up. Tap it to get the reward. It should be obvious what the rewards are, so I will leave you to explore them.
If you participated in a TWCC freebie event (one was done just before TWCC goes version 3) and were given a serial number, Cheery is where you go to redeem it. On this front JPCC is easier where one can just tap a link that starts the game and everything just works.
Lilith goes to a members area where you supposedly are able to link your TWCC game to Mobimon's own service, which is said to allow you to look up the transfer ID and password should you lose it. It never worked for me, so staying on top of your transfer password is still your best bet.
Minoa is another set of terms and conditions.
No Lobi support, ever
TWCC never had integration with Lobi, the Japanese gameplay video sharing service. Not that it matters much anyway, because this Lobi service shuts down at the end of February for the Japanese as well.
No mentor system
If you also play JPCC, you may have happen across a mechanism where you can find a mentor to help you along in your early game (up to rank 50) or later be a mentor of up to 3 newbies, and both get additional free resources.
It never happened in TWCC.
Weekly maintenance window
TWCC has a routine maintenance window usually every Thursdays between 14:00-17:00 UTC+8 (1am-4am EST) when you won't be able to enter the game. This is where event changeover happens, and is usually announced a day in advance with a hint of what's next.
100+ Original characters
TWCC has some autonomy when it comes to characters, and we have some pretty OP personalities we can call our own. To date they are all either SR or SSR. Some can even be obtained from regular taverns. I'll go into details with them in their own posts.
