I take that back. Apparently even lowly Spire has the capacity to fight dirty. From the IGN FAQs section (the atrocious spelling is his, not mine):
Alinos Gateway Cheese FAQ
Hears how to win pritty much any time, unless your facing a three star bot on
multicard mode.
The first thing that you have to do is chose your game, battle, or survivor,
on wifi it could work.
Then chose the level Alinos Gateway.
Chose Spire as your character. Since spire is a fire character the lava all
around the place doesn't hurt him. Now once you start imediatly go get the 100
health and the magmaul and amuniton right next to it. Now all you have to do
is kill them once, before they kill you, or take the lead. I'll tell you how i
would do it. Use the magmauls charged beam to shoot you oponent and set them
on fire, try to push them in the lava, and if that fails just go to your alt
form and whack them to death. Once your in the lead roll out far into the
lava, their should be a big pillar to the right of the lavafall thing. Simply
get behind it and wait for the clock to go out. Some call that cheating and
being a wuss, but i'm the one who won so who cares.
Their are only two ways that this won't work, One if the person you are facing
is super good and can kill you before you kill them, or Two they are Spire as
well and can just come out and get you, but if he is spire as well you can
just climb up the pillars and walls and try to dodge him.
I have tested this technique out and here are the resoults.
WIFI 2 out of 2 Facing a bot level 1 5 out of 5 Facing a bot level 2 5 out of
5 Facing a bot level 3 2 out of 5 (but Level 3 bots are almost perfect) This
techniuque will work on battle, survival, and every other game that is one on
one and involves scores from killing the other person.