I know of two glitches really..
First one is, when the player is in start park near the warp bubble and they have the Christmas carrot from forever ago equip they cannot be effected by it.
Second one is one that I showed Alpho a bit ago and don't know if it was fixed, the player activates the glitch by spamming a guns fire repetitively that has a really fast reload(like the Shipka) and while they are firing they hit the other gun they have in their 2 slots like the AC9 or something, if the second gun doesn't reload it worked and when the player hits the glove to reload it'll reload the AC9 or what ever gun they had at the same speed as the Shipka.

Graal784189