The "shine bright as a crystal" badge is when you have to touch all the crystals in chapter 3, it sounds easy enough until you try it. sometimes you don't get the badge even when collecting all of the crystals. now bare with me but the reason why you didn't got it is because you didn't touched all of the crystals. a strat i recommend is to look at every place possible, like LOOK EVERY PLACE POSSIBLE, corners, sides, secrets, LOOK EVERYWHERE, if you still didn't got it try looking at the spots you know they are crystals, they might be some that you haven't touched yet. i also recommend to NOT JUMP WHEN NOT NEEDED when trying to get this badge, jumping leads you to miss some crystals that you need so ONLY JUMP WHEN REQUIRED

Normally it will take 10-15 trying to get this badge but if you struggle trying to get it. it can take about 30-1H at least so do not give up, literally do not. this just makes you struggle more trying to get it. i do recommend breaks tho if you need to.

Example: Skip to 13.19 - 28.00 / Credits to doge

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3177680607