You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
See the "Unlimited Sol Sanctum Training" from the cheat section.
While in Sol Sanctum, you can usually encounter monsters until you reach level 5. Here is a way to go beyond that border. Make sure Jenna is at level 1. While in battle with a monster, let Jenna die. Do not revive her. Isaac and Garet can now train to any level you want.
So either finish Sol Sanctum or kill off Jenna...
-- I know my apprehensions might never be allayed, and so I close, realizing that perhaps the ending has not yet been written.