Thanks for your feedback. We definitely could have fine-tuned the difficulty better and we'll be patching it soon if you want to check it out.
As for the arcade cabinets, it was really hard finding good, free arcade cabinets online that actually worked in Unreal within our time frame so that's the best we could find during the jam. I can probably tweak them a bit.
And the modem sound for an arcade machine — I'll have to come up for a lore explanation for it. ;)