Jerry is a night security guard at Snackle's Family Fun Barn, somewhere in Ohio. The animatronic band — Jimbob, Jeremiah, Jawad and Jerere — comes alive at midnight, and Jerry's brain also invents things that aren't there. Great combo.
Every few seconds each robot gets a chance to move, and its level is the odds it takes that chance. At 1 a robot moves on 1 chance in 20 and mostly just stands there. At 20 it takes every single one and never stops coming. Higher levels also cut the time you get once they reach your door.
Jerere is the tall blue one. He crosses three rooms before he reaches you instead of two, so at the same level he takes longer to arrive — you just have to be watching.