Arch

Arch's personality in the second reboot mostly boils down to being immature, aggressive and hot tempered. He regularly acts innocently and refuses to say swear words. He also isn't able to understand big words, implying he only has a simple vocabulary.

Arch can be rather grumpy, especially towards Trowel and Beer, who constantly bully/prank him. He is also considered a loudmouth, since he tends to shout almost every time he speaks. He also can be a 'tough guy wannabe' when he gets angered.

One thing he really hates is when someone refers to him as a "U rip-off." This sets him off and causes him to yell at them while reminding them about how the nickname insults him.

In the first reboot, Arch seemed to be more calmer and didn't yell very often; before R2.