Cardboard-Box-Timeline!Spring

Cardboard-Box-Timeline!Spring (shortened to CBSpring) is a character in the BFYONCW franchise. He was initially created as a clone of Infinity!Spring to participate in BFCB which took place in an alternate timeline. At the time, he was indistinguishable from Infinity!Spring, until one episode when Twi Alpha trapped him in the Cardboard Box That Gives You God Powers that was affected by artificial time dilation in it to make every second outside the box last a millennium inside the box. 100 seconds passed outside, meaning 100 millennia (100000 years) passed inside. Over that time, CBSpring's mental state deteriorated, so Infinity!Spring came from another timeline and replaced him. The power of the box was absorbed into CBSpring, though nobody knew this and they thought someone else took the power and kidnapped CBSpring. They tried to save him, but then chaos happened, and he was forgotten about, until in the Among Us challenge when Original Mama Luigi checked the cameras and saw CBSpring fighting with an evil version of himself, but he ignored it, and didn't tell anyone about it. Eventually, after a long hiatus, the show was rebooted into BFCBR, and to keep things simple, all of the lore was removed, which reset almost everything to its original state, and then everyone forgot about CBSpring. Seriously, he hasn't been mentioned once since the start of BFCBR.

One thing of interest is that in BFCBR episode 3, Random Bot got stuck in the same box (which doesn't have the time dilation effects anymore) and used its power to make random crazy things happen. This is kind of similar to CBSpring's story, except CBSpring didn't seem to use his powers at all, and his story had long-lasting affects on the show, up until the reboot.

However, since he hasn't been mentioned since BFCBR started, there is no in-universe explanation for his disappearance, and so it is possible that he still has the powers that he got from the original BFCB, and, although unlikely, he could return at some point in BFCBR.