Here is a little guide to help you reach level 18 in 15 minutes.
Create a new character and go kill Kyzogg. Speak to Bourbon after it’s done, it will increase your reputation with Devil’s Crossing.
In the main menu, select one of your character that unlocked Ultimate. Click on the difficulty selection menu, select Ultimate but do not confirm, and use the up/down arrows to select another character. Confirm. Your new character can now access Ultimate.
- Speak to the guy guarding the gates, it will give you a ton of EXP.
- Speak to the Spirit Guide for the same reward.
- If you feel like it, you can get Milton’s Amulet and Fabric in Normal and deliver them in Ultimate.
This is useful as it saves about an hour (level 1 to 20) of leveling.
Of course I do not advise to use this mechanic if you just bought the game, but if you have played for years you can allow yourself a little booster.