Beams are not very usless, or at least not as useless as you would think. there are plenty of times that i would melee someone, and as they're falling, switch to generic beam and hit them with that. Also, if you have a high enough power level and someone really makes ya mad, like a melee abuser or something, you could practically blow up him and possibly a couple people around him as well.
Trust me, i've already done that in one of my servers that i hosted. Some complete n00b came into the server saying he was all that cause he was awesome at melee. I was Gohan with a very high power level, he was threatening to kill me too, he wasn't payin attention to me, so i launched a full power kamehameha in turbo mode at him........... needless to say, him and about half of the other people on his team died instantly. :laff: I love being evil like that. Also like being gohan and using shield attack to make map killers. most of the time it works easy cause there will be people that don't know that you can shoot from it.:]