You must unlock and then buy them.
Monkey
no there is not
No.
p164
yes
get 100%
agent chase and agent trace and now bye
By beating King, Act I.
Agent Trace, Agent Chase, Agent Swift,Agent Fuse, Agent Charge, and Agent Swipe
No. He is not on the character list, nor is he a cheat code.
yes there is a code if you enter xbwtl it will unlock all the characters for you.