In general, I dislike Arps. It's overuse in most 8bit Euro music for small home computers and SMS, it's super grating on the ear - no good. Like Joe said, there are some exceptions. When it isn't in your face "nothing but arps", then it's ok. And to be honest, outside of modern chiptunes emulating that old style, the NES euro musics seem to do it best (that arp usage is more subtle).
Speaking of which. Impossamole sucks for a few reasons, but one of them is the ARP'd out sound track. Frankly, it's a down right disgusting use of the PCE soundchip.